The mushroom cloud of the atomic bombing of Nagasaki, Japan on August 9, 1945 rose some 18 kilometers (11 mi) above the bomb's hypocenter.

Nuclear weapons
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A nuclear weapon is an explosive device that derives its destructive force from nuclear reactions, either fission or a combination of fission and fusion. Both reactions release vast quantities of energy from relatively small amounts of matter. The first fission ("atomic") bomb test released the same amount of energy as approximately 20,000 tons of TNT. The first thermonuclear ("hydrogen") bomb test released the same amount of energy as approximately 10,000,000 tons of TNT.^[1]

A modern thermonuclear weapon weighing little more than 2,400 pounds (1,100 kg) can produce an explosive force comparable to the detonation of more than 1.2 million tons (1.1 million tonnes) of TNT.^[2] Thus, even a small nuclear device no larger than traditional bombs can devastate an entire city by blast, fire and radiation. Nuclear weapons are considered weapons of mass destruction, and their use and control have been a major focus of international relations policy since their debut.

Only two nuclear weapons have been used in the course of warfare, both by the United States near the end of World War II. On 6 August 1945, a uranium gun-type device code-named "Little Boy" was detonated over the Japanese city of Hiroshima. Three days later, on 9 August, a plutonium implosion-type device code-named "Fat Man" was exploded over Nagasaki, Japan. These two bombings resulted in the deaths of approximately 200,000 Japanese people—mostly civilians—from acute injuries sustained from the explosions.^[3] The role of the bombings in Japan's surrender, and their ethical status, remain the subject of scholarly and popular debate.

Since the bombings of Hiroshima and Nagasaki, nuclear weapons have been detonated on over two thousand occasions for testing purposes and demonstrations. Only a few nations possess such weapons or are suspected of seeking them. The only countries known to have detonated nuclear weapons—and that acknowledge possessing such weapons—are (chronologically by date of first test) the United States, the Soviet Union (succeeded as a nuclear power by Russia), the United Kingdom, France, the People's Republic of China, India, Pakistan, and North Korea. In addition, Israel is also widely believed to possess nuclear weapons, though it does not acknowledge having them.^[4][5][6] One state, South Africa, has admitted to having previously fabricated nuclear weapons in the past, but has since disassembled their arsenal and submitted to international safeguards.^[7]

The Federation of American Scientists estimates there are more than 19,000 nuclear warheads in the world as of 2012, with around 4,400 of them kept in "operational" status, ready for potential use.^[4]

Types[link]

The two basic fission weapon designs

There are two basic types of nuclear weapons: those which derive the majority of their energy from nuclear fission reactions alone, and those which use fission reactions to begin nuclear fusion reactions that produce a large amount of the total energy output.

Fission weapons[link]

All existing nuclear weapons derive some of their explosive energy from nuclear fission reactions. Weapons whose explosive output is exclusively from fission reactions are commonly referred to as atomic bombs or atom bombs (abbreviated as A-bombs). This has long been noted as something of a misnomer, however, as their energy comes specifically from the nucleus of the atom.

In fission weapons, a mass of fissile material (enriched uranium or plutonium) is assembled into a supercritical mass—the amount of material needed to start an exponentially growing nuclear chain reaction—either by shooting one piece of sub-critical material into another (the "gun" method) or by compressing a sub-critical sphere of material using chemical explosives to many times its original density (the "implosion" method). The latter approach is considered more sophisticated than the former and only the latter approach can be used if the fissile material is plutonium.

A major challenge in all nuclear weapon designs is to ensure that a significant fraction of the fuel is consumed before the weapon destroys itself. The amount of energy released by fission bombs can range from the equivalent of less than a ton of TNT upwards of 500,000 tons (500 kilotons) of TNT.^[8]

All fission reactions necessarily generate fission products, the radioactive remains of the atomic nuclei split by the fission reactions. Many fission products are either highly radioactive (but short-lived) or moderately radioactive (but long-lived), and as such are a serious form of radioactive contamination if not fully contained. Fission products are the principal radioactive component of nuclear fallout.

The most commonly used fissile materials for nuclear weapons applications have been uranium-235 and plutonium-239. Less commonly used has been uranium-233. Neptunium-237 and a number of isotopes of americium may be usable for nuclear explosives as well, but it is not clear that this has ever been actually implemented, and even their plausible use in nuclear weapons is a matter of scientific dispute.^[9]

Fusion weapons[link]

The basics of the Teller–Ulam design for a hydrogen bomb: a fission bomb uses radiation to compress and heat a separate section of fusion fuel.

The other basic type of nuclear weapon produces a large amount of its energy through nuclear fusion reactions. Such fusion weapons are generally referred to as thermonuclear weapons or more colloquially as hydrogen bombs (abbreviated as H-bombs), as they rely on fusion reactions between isotopes of hydrogen (deuterium and tritium). However, all such weapons derive a significant portion, and sometimes a majority, of their energy from fission. This is because a fission weapon is required as a "trigger" for the fusion reactions, and the fusion reactions can themselves trigger additional fission reactions.^[10]

Only six countries—United States, Russia, United Kingdom, People's Republic of China, France and India—have conducted thermonuclear weapon tests. (Whether India has detonated a "true", multi-staged thermonuclear weapon is controversial.)^[11] All thermonuclear weapons are considered to be much more difficult to successfully design and execute than primitive fission weapons.

Thermonuclear bombs work by using the energy of a fission bomb to compress and heat fusion fuel. In the Teller-Ulam design, which accounts for all multi-megaton yield hydrogen bombs, this is accomplished by placing a fission bomb and fusion fuel (tritium, deuterium, or lithium deuteride) in proximity within a special, radiation-reflecting container. When the fission bomb is detonated, gamma rays and X-rays emitted first compress the fusion fuel, then heat it to thermonuclear temperatures. The ensuing fusion reaction creates enormous numbers of high-speed neutrons, which can then induce fission in materials not normally prone to it, such as depleted uranium. Each of these components is known as a "stage", with the fission bomb as the "primary" and the fusion capsule as the "secondary". In large, megaton-range hydrogen bombs, about half of the yield comes from the final fissioning of depleted uranium.^[8]

By chaining together numerous stages with increasing amounts of fusion fuel, thermonuclear weapons can be made to an almost arbitrary yield; the largest ever detonated (the Tsar Bomba of the USSR) released an energy equivalent of over 50 million tons (50 megatons) of TNT. Most thermonuclear weapons are considerably smaller than this, due to practical constraints arising from the space and weight requirements of missile warheads.^[12]

Fusion reactions do not create fission products, and thus contribute far less to the creation of nuclear fallout than fission reactions. However, because all thermonuclear weapons contain at least one fission stage, and many high-yield thermonuclear devices have a final fission stage from depleted uranium, thermonuclear weapons can generate at least as much nuclear fallout as fission-only weapons, if not substantially more.

Other types[link]

There are other types of nuclear weapons as well. For example, a boosted fission weapon is a fission bomb which increases its explosive yield through a small amount of fusion reactions, but it is not a fusion bomb. In the boosted bomb, the neutrons produced by the fusion reactions serve primarily to increase the efficiency of the fission bomb.

Some weapons are designed for special purposes; a neutron bomb is a thermonuclear weapon that yields a relatively small explosion but a relatively large amount of neutron radiation; such a device could theoretically be used to cause massive casualties while leaving infrastructure mostly intact and creating a minimal amount of fallout. The detonation of any nuclear weapon is accompanied by a blast of neutron radiation. Surrounding a nuclear weapon with suitable materials (such as cobalt or gold) creates a weapon known as a salted bomb. This device can produce exceptionally large quantities of radioactive contamination.

Research has been done into the possibility of pure fusion bombs: nuclear weapons that consisted of fusion reactions without requiring a fission bomb to initiate them. Such a weapon would potentially prove to be a simpler path to thermonuclear weapons than one requiring the development of fission weapons first, and pure fusion weapons would create significantly less nuclear fallout than other thermonuclear weapons, as they would not disperse fission products. In 1998, the United States Department of Energy divulged that the United States had "made a substantial investment" in the past to develop pure fusion weapons but that "the U.S. does not have and is not developing a pure fusion weapon" and that "no credible design for a pure fusion weapon resulted from the DOE investment."^[13]

Most variation in nuclear weapon design is for the purpose of achieving different yields for different situations, and in manipulating design elements to attempt to minimize weapon size.^[8]

Weapons delivery[link]

The first nuclear weapons were gravity bombs, such as this "Fat Man" weapon dropped on Nagasaki, Japan. They were very large and could only be delivered by heavy bomber aircraft

Nuclear weapons delivery—the technology and systems used to bring a nuclear weapon to its target—is an important aspect of nuclear weapons relating both to nuclear weapon design and nuclear strategy. Additionally, development and maintenance of delivery options is among the most resource-intensive aspects of a nuclear weapons program: according to one estimate, deployment costs accounted for 57% of the total financial resources spent by the United States in relation to nuclear weapons since 1940.^[14]

Historically the first method of delivery, and the method used in the two nuclear weapons actually used in warfare, was as a gravity bomb, dropped from bomber aircraft. This method is usually the first developed by countries as it does not place many restrictions on the size of the weapon and weapon miniaturization is something which requires considerable weapons design knowledge. It does, however, limit the range of attack, the response time to an impending attack, and the number of weapons which can be fielded at any given time.

With the advent of miniaturization, nuclear bombs can be delivered by both strategic bombers and tactical fighter-bombers, allowing an air force to use its current fleet with little or no modification. This method may still be considered the primary means of nuclear weapons delivery; the majority of U.S. nuclear warheads, for example, are free-fall gravity bombs, namely the B61.^[8]

A Trident II SLBM launched from a Royal Navy Vanguard class ballistic missile submarine.

More preferable from a strategic point of view is a nuclear weapon mounted onto a missile, which can use a ballistic trajectory to deliver the warhead over the horizon. While even short range missiles allow for a faster and less vulnerable attack, the development of long-range intercontinental ballistic missiles (ICBMs) and submarine-launched ballistic missiles (SLBMs) has given some nations the ability to plausibly deliver missiles anywhere on the globe with a high likelihood of success.

More advanced systems, such as multiple independently targetable reentry vehicles (MIRVs), allow multiple warheads to be launched at different targets from one missile, reducing the chance of a successful missile defense. Today, missiles are most common among systems designed for delivery of nuclear weapons. Making a warhead small enough to fit onto a missile, though, can be a difficult task.^[8]

Tactical weapons have involved the most variety of delivery types, including not only gravity bombs and missiles but also artillery shells, land mines, and nuclear depth charges and torpedoes for anti-submarine warfare. An atomic mortar was also tested at one time by the United States. Small, two-man portable tactical weapons (somewhat misleadingly referred to as suitcase bombs), such as the Special Atomic Demolition Munition, have been developed, although the difficulty of combining sufficient yield with portability limits their military utility.^[8]

Nuclear strategy[link]

The United States' Peacekeeper missile was a MIRVed delivery system. Each missile could contain up to ten nuclear warheads (shown in red), each of which could be aimed at a different target. These were developed to make missile defense very difficult for an enemy country.

Nuclear warfare strategy is a set of policies that deal with preventing or fighting a nuclear war. The policy of trying to prevent an attack by a nuclear weapon from another country by threatening nuclear retaliation is known as the strategy of nuclear deterrence. The goal in deterrence is to always maintain a second strike capability (the ability of a country to respond to a nuclear attack with one of its own) and potentially to strive for first strike status (the ability to completely destroy an enemy's nuclear forces before they could retaliate). During the Cold War, policy and military theorists in nuclear-enabled countries worked out models of what sorts of policies could prevent one from ever being attacked by a nuclear weapon.

Different forms of nuclear weapons delivery (see above) allow for different types of nuclear strategies. The goals of any strategy are generally to make it difficult for an enemy to launch a pre-emptive strike against the weapon system and difficult to defend against the delivery of the weapon during a potential conflict. Sometimes this has meant keeping the weapon locations hidden, such as deploying them on submarines or rail cars whose locations are very hard for an enemy to track and other times this means protecting them by burying them in hardened bunkers.

Other components of nuclear strategies have included using missile defense (to destroy the missiles before they land) or implementation of civil defense measures (using early-warning systems to evacuate citizens to safe areas before an attack).

Note that weapons which are designed to threaten large populations or to generally deter attacks are known as strategic weapons. Weapons which are designed to actually be used on a battlefield in military situations are known as tactical weapons.

There are critics of the very idea of nuclear strategy for waging nuclear war who have suggested that a nuclear war between two nuclear powers would result in mutual annihilation. From this point of view, the significance of nuclear weapons is purely to deter war because any nuclear war would immediately escalate out of mutual distrust and fear, resulting in mutually assured destruction. This threat of national, if not global, destruction has been a strong motivation for anti-nuclear weapons activism.

Critics from the peace movement and within the military establishment have questioned the usefulness of such weapons in the current military climate. According to an advisory opinion issued by the International Court of Justice in 1996, the use of (or threat of use of) such weapons would generally be contrary to the rules of international law applicable in armed conflict, but the court did not reach an opinion as to whether or not the threat or use would be lawful in specific extreme circumstances such as if the survival of the state were at stake.

Perhaps the most controversial idea in nuclear strategy is that nuclear proliferation would be desirable. This view argues that, unlike conventional weapons, nuclear weapons successfully deter all-out war between states, and they are said to have done this during the Cold War between the U.S. and the Soviet Union.^[15] Political scientist Kenneth Waltz is the most prominent advocate of this argument.^[16][17]

The threat of potentially suicidal terrorists possessing nuclear weapons (a form of nuclear terrorism) complicates the decision process. The prospect of mutually assured destruction may not deter an enemy who expects to die in the confrontation. Further, if the initial act is from a stateless terrorist instead of a sovereign nation, there is no fixed nation or fixed military targets to retaliate against. It has been argued, especially after the September 11, 2001 attacks, that this complication is the sign of the next age of nuclear strategy, distinct from the relative stability of the Cold War.^[18] In 1996, the United States adopted a policy of allowing the targeting of its nuclear weapons at terrorists armed with weapons of mass destruction.^[19]

Governance, control, and law[link]

The International Atomic Energy Agency was created in 1957 in order to encourage the peaceful development of nuclear technology while providing international safeguards against nuclear proliferation.

Because of the immense military power they can confer, the political control of nuclear weapons has been a key issue for as long as they have existed; in most countries the use of nuclear force can only be authorized by the head of government or head of state.^[20]

In the late 1940s, lack of mutual trust was preventing the United States and the Soviet Union from making ground towards international arms control agreements, but by the 1960s steps were being taken to limit both the proliferation of nuclear weapons to other countries and the environmental effects of nuclear testing. The Partial Test Ban Treaty (1963) restricted all nuclear testing to underground nuclear testing, to prevent contamination from nuclear fallout, while the Nuclear Non-Proliferation Treaty (1968) attempted to place restrictions on the types of activities which signatories could participate in, with the goal of allowing the transference of non-military nuclear technology to member countries without fear of proliferation.

Weapons of mass destruction
By type
Biological, Chemical, Nuclear, Radiological
By country
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Biological, Chemical, Nuclear, Missiles
Treaties
List of treaties
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In 1957, the International Atomic Energy Agency (IAEA) was established under the mandate of the United Nations in order to encourage the development of the peaceful applications of nuclear technology, provide international safeguards against its misuse, and facilitate the application of safety measures in its use. In 1996, many nations signed the Comprehensive Test Ban Treaty^[21] which prohibits all testing of nuclear weapons, which would impose a significant hindrance to their development by any complying country.^[22] Due to the strict entry-into-force criterion of the convention however, it had as of 2011 not entered into force.^[21]

Additional treaties and agreements have governed nuclear weapons stockpiles between the countries with the two largest stockpiles, the United States and the Soviet Union, and later between the United States and Russia. These include treaties such as SALT II (never ratified), START I (expired), INF, START II (never ratified), SORT, and New START, as well as non-binding agreements such as SALT I and the Presidential Nuclear Initiatives^[23] of 1991. Even when they did not enter into force, these agreements helped limit and later reduce the numbers and types of nuclear weapons between the United States and the Soviet Union/Russia.

Nuclear weapons have also been opposed by agreements between countries. Many nations have been declared Nuclear-Weapon-Free Zones, areas where nuclear weapons production and deployment are prohibited, through the use of treaties. The Treaty of Tlatelolco (1967) prohibited any production or deployment of nuclear weapons in Latin America and the Caribbean, and the Treaty of Pelindaba (1964) prohibits nuclear weapons in many African countries. As recently as 2006 a Central Asian Nuclear Weapon Free Zone was established amongst the former Soviet republics of Central Asia prohibiting nuclear weapons.

In the middle of 1996, the International Court of Justice, the highest court of the United Nations, issued an Advisory Opinion concerned with the "Legality of the Threat or Use of Nuclear Weapons". The court ruled that the use or threat of use of nuclear weapons would violate various articles of international law, including the Geneva Conventions, the Hague Conventions, the UN Charter, and the Universal Declaration of Human Rights. In view of the unique, destructive characteristics of nuclear weapons, the International Committee of the Red Cross calls on States to ensure that these weapons are never used, irrespective of whether they consider them to be lawful or not.^[24]

Additionally, there have been other, specific actions meant to discourage countries from developing nuclear arms. In the wake of the tests by India and Pakistan in 1998, economic sanctions were (temporarily) levied against both countries, though neither were signatories with the Nuclear Non-Proliferation Treaty. One of the stated casus belli for the initiation of the 2003 Iraq War was an accusation by the United States that Iraq was actively pursuing nuclear arms (though this was soon discovered not to be the case as the program had been discontinued). In 1981, Israel had bombed a nuclear reactor being constructed in Osirak, Iraq, in what it called an attempt to halt Iraq's previous nuclear arms ambitions; in 2007, Israel bombed another reactor being constructed in Syria.

Disarmament[link]

Ukrainian workers use equipment provided by the U.S. Defense Threat Reduction Agency to dismantle a Soviet-era missile silo. After the end of the Cold War, Ukraine and the other non-Russian, post-Soviet republics relinquished Soviet nuclear stockpiles to Russia.

Nuclear disarmament refers to both the act of reducing or eliminating nuclear weapons and to the end state of a nuclear-free world, in which nuclear weapons are completely eliminated.

Beginning with the 1963 Partial Test Ban Treaty and continuing through the 1996 Comprehensive Test Ban Treaty, there have been many treaties to limit or reduce nuclear weapons testing and stockpiles. The 1968 Nuclear Non-Proliferation Treaty has as one of its explicit conditions that all signatories must "pursue negotiations in good faith" towards the long-term goal of "complete disarmament". However, no nuclear state has treated that aspect of the agreement as having binding force.^[25]

Only one country—South Africa—has ever fully renounced nuclear weapons they had independently developed. A number of former Soviet republics—Belarus, Kazakhstan, and Ukraine—returned Soviet nuclear arms stationed in their countries to Russia after the collapse of the USSR.

Proponents of nuclear disarmament say that it would lessen the probability of nuclear war occurring, especially accidentally. Critics of nuclear disarmament say that it would undermine deterrence and could lead to increased global instability. Various American government officials, who were in office during the Cold War period, have recently been advocating the elimination of nuclear weapons. These officials include Henry Kissinger, George Shultz, Sam Nunn, and William Perry. In January 2010, Lawrence M. Krauss stated that "no issue carries more importance to the long-term health and security of humanity than the effort to reduce, and perhaps one day, rid the world of nuclear weapons".^[26]

In the years after the end of the Cold War, there have been numerous campaigns to urge the abolition of nuclear weapons, such as that organized by the Global Zero movement, and the goal of a "world without nuclear weapons" was advocated by United States President Barack Obama in an April 2009 speech in Prague.^[27] A CNN poll from April 2010 indicated that the American public was nearly evenly split on the issue.^[28]

Controversy[link]

Demonstration against nuclear testing in Lyon, France, in the 1980s.

Even before the first nuclear weapons had been developed, scientists involved with the Manhattan Project were divided over the use of the weapon. The role of the two atomic bombings of the country in Japan's surrender and the U.S.'s ethical justification for them has been the subject of scholarly and popular debate for decades. The question of whether nations should have nuclear weapons, or test them, has been continually and nearly universally controversial.

Radioactive fallout from nuclear weapons testing was first drawn to public attention in 1954 when the Castle Bravo hydrogen bomb test at the Pacific Proving Grounds contaminated the crew and catch of the Japanese fishing boat Lucky Dragon.^[29] One of the fishermen died in Japan seven months later, and the fear of contaminated tuna led to a temporary boycotting of the popular staple in Japan. The incident caused widespread concern around the world, especially regarding the effects of nuclear fallout and atmospheric nuclear testing, and "provided a decisive impetus for the emergence of the anti-nuclear weapons movement in many countries".^[29]

Peace movements emerged in Japan and in 1954 they converged to form a unified "Japanese Council Against Atomic and Hydrogen Bombs". Japanese opposition to nuclear weapons tests in the Pacific Ocean was widespread, and "an estimated 35 million signatures were collected on petitions calling for bans on nuclear weapons".^[30]

In the United Kingdom, the first Aldermaston March organised by the Campaign for Nuclear Disarmament took place at Easter 1958, when several thousand people marched for four days from Trafalgar Square, London, to the Atomic Weapons Research Establishment close to Aldermaston in Berkshire, England, to demonstrate their opposition to nuclear weapons.^[31][32] The Aldermaston marches continued into the late 1960s when tens of thousands of people took part in the four-day marches.^[30]

In 1959, a letter in the Bulletin of Atomic Scientists was the start of a successful campaign to stop the Atomic Energy Commission dumping radioactive waste in the sea 19 kilometres from Boston.^[33] In 1962, Linus Pauling won the Nobel Peace Prize for his work to stop the atmospheric testing of nuclear weapons, and the "Ban the Bomb" movement spread.^[34]

In 1963, many countries ratified the Partial Test Ban Treaty prohibiting atmospheric nuclear testing. Radioactive fallout became less of an issue and the anti-nuclear weapons movement went into decline for some years.^[29][35] A resurgence of interest occurred amid European and American fears of nuclear war in the 1980s.^[36]

Between 1940 and 1996, the U.S. spent at least $8.63 trillion in present day terms^[37] on nuclear weapons development. Over half was spent on building delivery mechanisms for the weapon. $541 billion in present day terms was spent on nuclear waste management and environmental remediation.^[38]

Non-weapons uses[link]

The 1962 Sedan nuclear test formed a crater 100 m (330 ft) deep with a diameter of about 390 m (1,300 ft), as a means of investigating the possibilities of using peaceful nuclear explosions for large-scale earth moving.

Apart from their use as weapons, nuclear explosives have been tested and used for various non-military uses, and proposed, but not used for large-scale earth moving. When long term health and clean-up costs were included, there was no economic advantage over conventional explosives.^[39]

Synthetic elements, such as einsteinium and fermium, created by neutron bombardment of uranium and plutonium during thermonuclear explosions, were discovered in the aftermath of the first thermonuclear bomb test. In 2008 the worldwide presence of new isotopes from atmospheric testing beginning in the 1950s was developed into a reliable way of detecting art forgeries, as all paintings created after that period may contain traces of cesium-137 and strontium-90, isotopes that did not exist in nature before 1945.^[40]

Nuclear explosives have also been seriously studied as potential propulsion mechanisms for space travel (see Project Orion) and for asteroid deflection.

See also[link]

Aftermath[link]

• Nuclear summer
• Nuclear winter

History[link]

• History of nuclear weapons
  • German nuclear energy project
  • Japanese atomic program
  • Manhattan Project
  • Soviet atomic bomb project
• Los Alamos National Laboratory
• Lawrence Livermore National Laboratory
• Lists of nuclear disasters and radioactive incidents
• Nuclear and radiation accidents, including nuclear weapons accidents
• Nuclear testing
  • Nevada Test Site
  • Project Gnome
• Military strategy
  • Civil Defense
  • Fractional Orbital Bombardment System
  • Mutual Assured Destruction
• Weapon of mass destruction
  • Nuclear strategy
  • Nuclear warfare

More technical details[link]

• Effects of nuclear explosions
• Intercontinental ballistic missile
• Neutron bomb
• Nuclear bombs and health
• Nuclear weapon design
• Nuclear weapon yield

Popular culture[link]

• Nuclear weapons in popular culture
• The Butter Battle Book

Proliferation and politics[link]

• Agency for the Prohibition of Nuclear Weapons in Latin America and the Caribbean
• Comprehensive Test Ban Treaty
• International Court of Justice advisory opinion on legality of nuclear weapons
• List of states with nuclear weapons
• List of nuclear weapons
• Nth Country Experiment
• Nuclear disarmament
• Nuclear explosive
• Nuclear Non-Proliferation Treaty
• Nuclear peace
• Nuclear proliferation
• Nuclear weapons and the United Kingdom
• The Letters of last resort (United Kingdom)
• Nuclear weapons and Russia
• Nuclear weapons and the United States
• Paranuclear
• Strategic Arms Limitation Talks
• Three Non-Nuclear Principles, of Japan

References[link]

Notes[link]

Bibliography[link]

External links[link]

Wikiquote has a collection of quotations related to: Nuclear weapon

Wikimedia Commons has media related to: Nuclear weapons

Wikinews has news related to: Nuclear proliferation

Listen to this article (info/dl)

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More spoken articles

• Current World Nuclear Arsenals has estimates of nuclear arsenals in the respective countries.

General[link]

• Nuclear Weapon Archive from Carey Sublette is a reliable source of information and has links to other sources and an informative FAQ.
• The Federation of American Scientists provide solid information on weapons of mass destruction, including nuclear weapons and their effects
• Alsos Digital Library for Nuclear Issues—contains many resources related to nuclear weapons, including a historical and technical overview and searchable bibliography of web and print resources.
• Everything you wanted to know about nuclear technology—Provided by New Scientist.
• Congressional Research Service (CRS) Reports regarding Nuclear weapons
• Video archive of US, Soviet, UK, Chinese and French Nuclear Weapon Testing at sonicbomb.com
• The National Museum of Nuclear Science & History (United States)—located in Albuquerque, New Mexico; a Smithsonian Affiliate Museum

Historical[link]

• The Manhattan Project: Making the Atomic Bomb at AtomicArchive.com
• Los Alamos National Laboratory: History (U.S. nuclear history)
• Race for the Superbomb, PBS website on the history of the H-bomb
• U.S. nuclear test photographs from the DOE Nevada Site Office
• U.S. nuclear test film clips from the DOE Nevada Site Office
• Recordings of recollections of the victims of Hiroshima and Nagasaki
• The Woodrow Wilson Center's Nuclear Proliferation International History Project or NPIHP is a global network of individuals and institutions engaged in the study of international nuclear history through archival documents, oral history interviews and other empirical sources.

David Siegel is an American motion picture screenwriter and director, and part of a long-standing writing-directing team with filmmaker Scott McGehee.

Filmography[link]

• Suture (1994)
• The Deep End (2001)
• Bee Season (2005)
• Uncertainty (2008)

Interviews[link]

• Link to Cineaste interview: "Identity Politics at Face Value" at The Free Library

External links[link]

• David Siegel at the Internet Movie Database

Mitt Romney
70th Governor of Massachusetts
In office January 2, 2003 – January 4, 2007
Lieutenant	Kerry Healey
Preceded by	Jane Swift (Acting)
Succeeded by	Deval Patrick
Personal details
Born	Willard Mitt Romney (1947-03-12) March 12, 1947 (age 65) Detroit, Michigan, U.S.
Political party	Republican
Spouse(s)	Ann Romney (m. 1969) «start: (1969)»"Marriage: Ann Romney to Mitt Romney" Location: (linkback:http://en-wiki.pop.wn.com/index.php/Mitt_Romney)
Children	Taggart (b. 1970) Matthew (b. 1971) Joshua (b. 1975) Benjamin (b. 1978) Craig (b. 1981)
Residence	Belmont, Massachusetts Wolfeboro, New Hampshire San Diego, California
Alma mater	Brigham Young University (BA) Harvard University (MBA, JD)
Religion	The Church of Jesus Christ of Latter-day Saints (Mormon)
Positions	Co-founder, Bain Capital (1984–1999) CEO, Bain & Company (1991–1992) CEO, 2002 Winter Olympics Organizing Committee (1999–2002)
Signature
Website	MittRomney.com

	This article is part of a series about Mitt Romney	Mitt Romney
2012 Presidential campaign 2008 Presidential campaign Governor of Massachusetts, 2003–2007 1994 U.S. Senate election Political positions · Electoral history Public image

Willard Mitt Romney (born March 12, 1947) is an American businessman and the presumptive nominee of the Republican Party for President of the United States in the 2012 election. He was the 70th Governor of Massachusetts (2003–07).

The son of Lenore and George W. Romney (Governor of Michigan, 1963–69), he was raised in Bloomfield Hills, Michigan. In 1966, after one year at Stanford University, he left the United States to spend thirty months in France as a Mormon missionary. In 1969, he married Ann Davies, and the couple had five children together. In 1971, he earned a Bachelor of Arts degree in English from Brigham Young University and, in 1975, a joint Juris Doctor and Master of Business Administration from Harvard University as a Baker Scholar. He entered the management consulting industry, which in 1977, led to a position at Bain & Company. Later serving as Chief Executive Officer, he helped bring the company out of financial crisis. In 1984, he co-founded the spin-off Bain Capital, a private equity investment firm that became highly profitable and one of the largest such firms in the nation. His net worth is estimated at $190–250 million, wealth that has helped fund his political campaigns. Active in The Church of Jesus Christ of Latter-day Saints, he served as Ward Bishop and later Stake President in his area near Boston. He ran as the Republican candidate in the 1994 U.S. Senate election in Massachusetts, losing to long-time incumbent Ted Kennedy. In 1999, he was hired as President and CEO of the Salt Lake Organizing Committee for the 2002 Winter Olympics and Paralympics; and he helped turn the fiscally troubled games into a success.

He was elected Governor of Massachusetts in 2002 but did not seek re-election in 2006. During his term he presided over a series of spending cuts and increases in fees that eliminated a projected $1.5 billion deficit. He also signed into law the Massachusetts health care reform legislation, the first of its kind in the nation, which provided near-universal health insurance access via state-level subsidies and individual mandates.

Romney ran for the Republican nomination in the 2008 U.S. presidential election, winning several primaries and caucuses but losing the nomination to John McCain. In the following years, he gave speeches and raised campaign funds on behalf of his fellow Republicans. In June 2011, he announced that he would seek the 2012 Republican presidential nomination; as of May 2012, he has won enough caucuses and primaries to become the party's presumptive nominee.

Early life and education[link]

Heritage and youth[link]

Willard Mitt Romney^[1] was born at Harper Hospital in Detroit, Michigan,^[2] the youngest child of George W. Romney, a self-made man who by 1948 had become an automobile executive, and Lenore Romney (née LaFount), an aspiring actress turned homemaker.^[3][4][5] His mother was a native of Logan, Utah, and his father was born in a Mormon colony in Chihuahua, Mexico, to American parents.^[6][7] He is of primarily English descent, and also has more distant Scottish and German ancestry.^[8][9][10] He is a fifth-generation member of The Church of Jesus Christ of Latter-day Saints (LDS Church).^[11][12] A great-great-grandfather, Miles Romney, converted to the faith in its first decade, and another great-great-grandfather, Parley P. Pratt, was an early leader in the church during the same time.^[13]

He was preceded in birth by three siblings: Margo Lynn, Jane LaFount, and G. Scott. Mitt followed after a gap of nearly six years. He was named after family friend, hotel magnate J. Willard Marriott, and his father's cousin Milton "Mitt" Romney, a former quarterback for the Chicago Bears.^{[14][nb 1]} In 1953, the family moved from Detroit to the affluent suburb of Bloomfield Hills.^[16] In 1954, his father became the chairmen and CEO of American Motors, a company he helped avoid bankruptcy, and return to profitability.^[16] By the time Mitt was twelve, his father had become a nationally known figure in print and on television,^[17] and Mitt idolized him.^[18]

Mitt Romney began attending Cranbrook School in the seventh grade.

He attended public elementary schools^[15] until the seventh grade, when he began commuting to Cranbrook School in Bloomfield Hills, a traditional private boys' preparatory school where he was one of only a few Mormons and where many students came from backgrounds even more privileged than he.^[19][20] He was not particularly athletic and at first did not excel academically.^[18] During his sophomore year he participated in the 1962 campaign in which his father was elected Governor of Michigan.^{[nb 2]} When his parents moved to the state capitol as part of George Romney taking office, Mitt took up residence at Cranbrook's Stevens Hall.^[19] George Romney was re-elected twice; Mitt worked for him as an intern in the governor's office, and was present at the 1964 Republican National Convention when his moderate father battled conservative party nominee Barry Goldwater over issues of civil rights and ideological extremism.^[18][22] During these years, Romney had a steady set of chores and summer jobs, including working as a security guard at a Chrysler plant.^[23]

At Cranbrook he was a manager for the ice hockey team and a member of the pep squad,^[19] and during his final year joined the cross country running team.^[15] He belonged to eleven school organizations and school clubs, and started the Blue Key Club boosters group.^[19] During his final year at Cranbook, Romney improved academically, but was still not a star pupil.^[18][20] He won an award for those "whose contributions to school life are often not fully recognized through already existing channels".^[20] Romney was involved in many pranks.^{[nb 3]}

In March of his senior year, he began dating Ann Davies, two years his younger, whom he had first met in elementary school; she attended the private Kingswood School, the sister school to Cranbrook.^[27][20] The two informally agreed to marriage around the time of his June 1965 graduation.^[18]

University, France mission, marriage and children: 1965–1975[link]

Romney attended Stanford University for a year,^{[18][nb 4]} where he worked as a night security guard in order to pay for trips home to see Ann.^[28] Although the campus was becoming radicalized with the beginnings of 1960s social and political movements, he kept a well-groomed appearance and participated in pre-Big Game actions designed to protect the Stanford Axe.^[18] In May 1966, he was part of a counter-protest against a group staging a sit-in in the university administration building in opposition to draft status tests.^[18][29]

In July 1966, he left for a thirty-month stay in France as a Mormon missionary,^[18][31] a traditional rite of passage that his father and many other relatives had volunteered for.^{[nb 5]} He arrived in Le Havre with ideas about how to change and promote the French Mission, while facing physical and economic deprivation in their cramped quarters.^[33][13] Rules against drinking, smoking, and dating were strictly enforced.^[13] Most individual Mormon missionaries do not gain many converts,^[35] and Romney was no exception:^[33] he later estimated ten to twenty for his entire mission.^[36] The nominally Catholic but secular, wine-loving French people were especially resistant to a religion that prohibits alcohol.^[18][13][30] He became demoralized, and later recalled it as the only time when "most of what I was trying to do was rejected."^[33] In Nantes, he suffered a bruised jaw while defending two female missionaries who were being bothered by a group of local rugby players.^[13] He continued to work hard; having grown up in Michigan rather than the more insular Utah world, Romney was better able to interact with the French than other missionaries.^[37][13] He was promoted to zone leader in Bordeaux in early 1968, then in the spring of that year became assistant to the mission president in Paris, the highest position for a missionary.^[33][13][38] In the Mission Home in Paris he enjoyed palace-like accommodations.^[38] Romney's support for the U.S. role in the Vietnam War was only reinforced when the French greeted him with hostility over the matter and he debated them in return.^[13][33] He witnessed the May 1968 general strike and student uprisings and was upset by the breakdown in social order.^[39]

In June 1968, an automobile he was driving in southern France was hit by another vehicle, seriously injuring him and killing one of his passengers, the wife of the mission president.^{[nb 6]} Romney, who was not at fault in the accident,^{[nb 6]} became co-acting president of a mission demoralized and disorganized by the May civil disturbances and by the car accident.^[37] He rallied and motivated the others and they met an ambitious goal of 200 baptisms for the year, the most for the mission in a decade.^[37] By the end of his stint in December 1968, he was overseeing the work of 175 fellow members.^[33][40] Romney developed a lifelong affection for France and its people, and speaks French.^[42] The experience in the country instilled in him a belief that life is fragile and that he needed seriousness of purpose.^[18][37][13] It also represented a crucible, after having been an indifferent Mormon growing up: "On a mission, your faith in Jesus Christ either evaporates or it becomes much deeper ... For me it became much deeper."^[33]

While he was away, Ann Davies had converted to the Mormon faith, guided by George Romney, and had begun attending Brigham Young University (BYU).^[18] Mitt was nervous that she had been wooed by others while he was away, and she had indeed started dating popular campus figure Kim S. Cameron and had sent Romney in France a "Dear John letter", greatly upsetting him; he wrote to her to in an attempt to win her back.^[43][15] At their first meeting following Romney's return they reconnected, and decided to get married immediately but agreed to wait three months to appease their parents.^[44] At Ann's request, Romney began attending Brigham Young too, in February 1969.^{[43][nb 4]} The couple were married on March 21, 1969, in a civil ceremony at Ann's family's home in Bloomfield Hills that was presided over by a church elder.^[46][47][48] The following day, the couple flew to Utah for a wedding ceremony at the Salt Lake Temple.^[46][47]

While Mitt attended Harvard, his father George W. Romney (pictured here with Richard M. Nixon) served as United States Secretary of Housing and Urban Development.

Romney had missed much of the tumultuous American anti-Vietnam War movement while away, and was surprised to learn that his father had turned against the effort during his unsuccessful 1968 presidential campaign.^[33] Regarding the military draft, Romney had initially received a student deferment, then, like most Mormon missionaries, a ministerial deferment while in France, and then a student deferment.^[33][49] When those ran out, his high number in the December 1969 draft lottery (300) ensured he would not be selected.^[33][49][50]

At culturally conservative BYU, he remained isolated from much of the upheaval of the era, and did not join in protests against the war, or the LDS Church's policy at the time of denying full membership to blacks.^[24][33][43] He became president of, and an innovative fundraiser for, the all-male Cougar Club booster organization and showed a new-found discipline in his studies.^[33][43] In his senior year, he took leave to work as driver and advance man for his mother Lenore Romney's eventually unsuccessful 1970 campaign for U.S. Senator from Michigan.^[24][46] He earned a Bachelor of Arts in English with highest honors in 1971,^[43] and gave commencement addresses to both the College of Humanities and to the whole of BYU.^{[nb 7]}

The Romneys' first son, Taggart, was born in 1970^[46] while they were undergraduates at Brigham Young^[52] and living in a basement apartment.^[33][43] Ann subsequently gave birth to Matt (1971), Josh (1975), Ben (1978), and Craig (1981).^[46] Her work as a homemaker would enable her husband to pursue his career.^[53]

Romney still wanted to pursue a business path, but his father, by now serving in President Richard Nixon's cabinet as U.S. Secretary of Housing and Urban Development, advised him that a law degree would be valuable to his career.^[54][55] Thus he became one of only fifteen students to enroll at the recently created joint Juris Doctor/Master of Business Administration four-year program coordinated between Harvard Law School and Harvard Business School.^[56] Fellow students considered him guilelessly optimistic, noting his solid work ethic and buttoned-down demeanor and appearance.^[56][57] He readily adapted to the business school's pragmatic, data-driven case study method of teaching, participated in class well, and led a study group whom he pushed to get all A's.^[55] He had a different social experience from most of his classmates, since he lived in a Belmont, Massachusetts, house with Ann and two children.^[46][55] He was non-ideological and did not involve himself in the political or social issues of the day.^[46][55] He graduated in 1975 cum laude from the law school, in the top third of that class, and was named a Baker Scholar for graduating in the top five percent of his business school class.^[51][56]

Business career[link]

Management consulting[link]

Romney was recruited by several firms and chose to remain in Massachusetts to work for Boston Consulting Group (BCG), reasoning that working as a management consultant to a variety of companies would better prepare him for a future position as a chief executive.^{[54][58][nb 8]} He was part of a 1970s wave of top graduates who chose to go into consulting rather than join a major company directly.^[60] His legal and business education proved useful in his job^[54] while he applied BCG principles such as the growth-share matrix.^[61] He was viewed as having a bright future there.^[54][62]

In 1977, he was hired away by Bain & Company, a management consulting firm in Boston that had been formed a few years earlier by Bill Bain and other former BCG employees.^[61][54][63] Bain would later say of the thirty-year-old Romney, "He had the appearance of confidence of a guy who was maybe ten years older."^[64] With Bain & Company, Romney learned what writers and business analysts have dubbed the "Bain way",^[54][63][65] which consisted of immersing the firm in each client's business,^[54][64] and not just issuing recommendations but staying with the company until changes were put into place.^[61][63][66] Romney became a vice president of the firm in 1978,^[15] and worked with clients such as the Monsanto Company, Outboard Marine Corporation, Burlington Industries, and Corning Incorporated.^[58] Within a few years, he was one of Bain & Company's best consultants and was sought after by clients over more senior partners.^[54][67]

Private equity[link]

Romney was restless for a company of his own to run, and in 1983, Bill Bain offered him the chance to head a new venture that would buy into companies, have them benefit from Bain techniques, and then reap higher rewards than consulting fees.^[54][61] He initially refrained from accepting the offer, and Bain re-arranged the terms in a complicated partnership structure so that there was no financial or professional risk to Romney.^[54][64][68] Thus, in 1984, Romney left Bain & Company to co-found the spin-off private equity investment firm, Bain Capital.^[66] In the face of skepticism from potential investors, Bain and Romney spent a year raising the $37 million in funds needed to start the new operation, which had fewer than ten employees.^[58][64][69] As general partner of the new firm, Romney spent little money on costs such as office appearance, and saw weak spots in so many potential deals that by 1986, few had been done.^[54] At first, Bain Capital focused on venture capital opportunities.^[54] Their first big success was a 1986 investment to help start Staples Inc., after founder Thomas G. Stemberg convinced Romney of the market size for office supplies and Romney convinced others; Bain Capital eventually reaped a nearly sevenfold return on its investment, and Romney sat on the Staples board of directors for over a decade.^[54][69][70]

Romney soon switched Bain Capital's focus from startups to the relatively new business of leveraged buyouts: buying existing firms with money mostly borrowed against their assets, partnering with existing management to apply the "Bain way" to their operations (rather than the hostile takeovers practiced in other leverage buyout scenarios), and selling them off in a few years.^[54][64] Existing CEOs were offered large equity stakes in the process, owing to Bain Capital's belief in the emerging agency theory that CEOs should be bound to maximizing shareholder value rather than other goals.^[70] Bain Capital lost most of its money in many of its early leveraged buyouts, but then started finding deals that made large returns.^[54] The firm invested in or acquired Accuride, Brookstone, Domino's Pizza, Sealy Corporation, Sports Authority, and Artisan Entertainment, as well as lesser-known companies in the industrial and medical sectors.^[54][64][71] He ran Bain Capital for fourteen years, during which time the firm's average annual internal rate of return on realized investments was 113 percent.^[58] Much of this profit was earned from a relatively small number of deals; Bain Capital's overall success–to–failure ratio was about even.^{[nb 9]}

Less an entrepreneur than an executive running an investment operation,^[67][72] Romney was skilled at presenting and selling the deals the company made.^[68] The firm initially gave a cut of its profits to Bain & Company, but Romney persuaded Bain to give that up.^[68] Within Bain Capital, Romney spread profits from deals widely within the firm to keep people motivated, often keeping less than ten percent for himself.^[73] Viewed as a fair manager, he received considerable loyalty from the firm's members.^[70] Romney's wary instincts were still in force at times, and he was generally data-driven and averse to risk.^[54][70] He wanted to drop a Bain Capital hedge fund that initially lost money, but other partners prevailed and it eventually gained billions.^[54] He also personally opted out of the Artisan Entertainment deal, not wanting to profit from a studio that produced R-rated films.^[54] Romney was on the board of directors of Damon Corporation, a medical testing company later found guilty of defrauding the government; Bain Capital tripled its investment before selling off the company, and the fraud was discovered by the new owners (Romney was never implicated).^[54] In some cases, Romney had little involvement with a company once acquired.^[69]

Bain Capital's leveraged buyouts sometimes led to layoffs, either soon after acquisition or later after the firm had left.^[61][68][69] How jobs added compared to those lost due to these investments and buyouts is unknown, due to a lack of records and Bain Capital's penchant for privacy on behalf of itself and its investors.^[74][75][76] In any case, maximizing the value of acquired companies and the return to Bain's investors, not job creation, was the firm's fundamental goal, as it was for most private equity operations.^[69][77] Bain Capital's acquisition of Ampad exemplified a deal where it profited handsomely from early payments and management fees, even though the subject company itself ended up going into bankruptcy.^[54][70][77] Dade Behring was another case where Bain Capital received an eightfold return on its investment, but the company itself was saddled with debt and laid off over a thousand employees before Bain Capital exited (the company subsequently went into bankruptcy, with more layoffs, before recovering and prospering).^[74] Bain was among the private equity firms that took the most fees in such cases.^[64][70]

In 1990, Romney was asked to return to Bain & Company, which was facing financial collapse.^[66] He was announced as its new CEO in January 1991^[78][79] but drew only a symbolic salary of one dollar.^[66] He managed an effort to restructure the firm's employee stock-ownership plan, real-estate deals and bank loans, while rallying the firm's thousand employees, imposing a new governing structure that included Bain and the other founding partners giving up control, and increasing fiscal transparency.^[54][58][66] Within about a year, he had led Bain & Company through a turnaround and returned the firm to profitability without further layoffs or partner defections.^[58] He turned Bain & Company over to new leadership and returned to Bain Capital in December 1992.^[54][79][80]

Romney took a leave of absence from Bain Capital in February 1999 to serve as the President and CEO of the 2002 Salt Lake City Olympic Games Organizing Committee.^[54][81] By that time, Bain Capital was on its way to being one of the top private equity firms in the nation,^[68] having increased its number of partners from 5 to 18, with 115 employees overall, and $4 billion under its management.^[64][69] Bain Capital's approach of applying consulting expertise to the companies it invested in became widely copied within the private equity industry.^[25][69] Economist Steven Kaplan would later say, "[Romney] came up with a model that was very successful and very innovative and that now everybody uses."^[70]

Personal wealth[link]

In August 2001, Romney announced that he would not return to Bain Capital.^[81] He transferred his ownership to other partners and negotiated an agreement that allowed him to receive a passive profit share as a retired partner in some Bain Capital entities, including buyout and investment funds.^[73][82] Because the private equity business continued to thrive, this deal brought him millions of dollars in annual income.^[73] As a result of his business career, by 2007, Romney and his wife had a net worth of between $190 and $250 million, most of it held in blind trusts since 2003.^[82] In 2012, it was estimated that he had amassed twice the net worth of the last eight presidents combined,^[83] and would rank among the four richest in American history if elected.^[83][84]

An additional blind trust existed in the name of the Romneys' children and grandchildren that was valued at between $70 and $100 million as of 2007.^[85] The couple's net worth remained in the same range as of 2011, and was still held in blind trusts.^[86] In 2010, Romney and his wife received $21.7 million in income, almost all of it from investments, of which about $3 million went to federal income taxes (a rate of 13.9 percent, based upon the beneficial rate accorded investment income by the U.S. tax code) and almost $3 million to charity, including $1.5 million to the LDS Church.^[87] Romney has always tithed to the church, including stock from Bain Capital holdings.^[13][88][89] In 2010, the Romney family's Tyler Charitable Foundation gave out about $650,000, with some of it going to organizations that fight specific diseases such as cystic fibrosis and multiple sclerosis.^[90]

Local LDS Church leadership[link]

During his years in business, Romney also served in the local lay clergy (consisting of all Mormon men over the age of 12).^[13] Around 1977, he became a counselor to the president of the Boston Stake.^[91] He later served as bishop of the ward (leader of the congregation) at Belmont, Massachusetts, from 1981 to 1986, acting as the ecclesiastical and administrative head of his congregation.^[92][93] As such, in addition to home teaching, he also formulated Sunday services and classes using LDS scriptures to guide the congregation.^[94] He forged bonds with other religious institutions in the area when the Belmont meetinghouse was destroyed by a fire of suspicious origins in 1984; the congregation rotated its meetings to other houses of worship while it was rebuilt.^[88][93]

From 1986 to 1994, he presided over the Boston Stake, which included more than a dozen wards in eastern Massachusetts with about 4,000 church members altogether.^[67][94][95] He organized a team to handle financial and management issues, sought to counter anti-Mormon sentiments, and tried to solve social problems among poor Southeast Asian converts.^[88][93] An unpaid position, his local church leadership often took 30 or more hours a week of his time,^[94] and he became known for his tireless energy in the role.^[67] He generally refrained from overnight business travel owing to his church responsibilities.^[94]

He took a hands-on role in general matters, helping in maintenance efforts in- and outside homes, visiting the sick, and counseling troubled or burdened church members.^[92][93][94] A number of local church members later credited him with turning their lives around or helping them through difficult times.^[88][93][94] Some others were rankled by his leadership style and desired a more consensus-based approach.^[93] Romney tried to balance the conservative dogma insisted upon by the church leadership in Utah with the desire of some Massachusetts members to have a more flexible application of doctrine.^[67] He agreed with some modest requests from the liberal women's group Exponent II for changes in the way the church dealt with women, but clashed with women whom he felt were departing too much from doctrine.^[67] In particular, he counseled women not to have abortions except in the rare cases allowed by LDS doctrine, and also in accordance with doctrine, encouraged prospective mothers who were not in successful marriages to give up children for adoption.^[67] Romney later said that the years spent as an LDS minister gave him direct exposure to people struggling in economically difficult circumstances, and empathy for those going through problematic family situations.^[96]

1994 U.S. senatorial campaign[link]

By 1993, Romney had been thinking about entering politics, partly based upon Ann's urging and partly to follow in his father's footsteps.^[46] He decided to challenge incumbent Democratic U.S. Senator Ted Kennedy, who was seeking re-election for the sixth time. Kennedy was potentially vulnerable that year – in part because of the unpopularity of the Democratic Congress as a whole, and in part because this was Kennedy's first election since the William Kennedy Smith trial in Florida, in which Kennedy had suffered some negative public relations regarding his character.^[97][98][99] Romney changed his affiliation from Independent to Republican in October 1993 and formally announced his candidacy in February 1994.^[46] He took a leave of absence from Bain Capital in November 1993, and stepped down from his church leadership role during 1994, due to the campaign.^[100][94]

Radio personality Janet Jeghelian took an early lead in polls among candidates for the Republican nomination for the Senate seat, but Romney proved the most effective fundraiser.^[101][102] He won 68 percent of the vote at the May 1994 Massachusetts Republican Party convention; businessman John Lakian finished a distant second and Jeghelian was eliminated.^[103] Romney defeated Lakian in the September 1994 primary with over 80 percent of the vote.^[15][104]

In the general election, Kennedy faced the first serious re-election challenger of his career in the young, telegenic, and well-funded Romney.^[97] Romney ran as a fresh face, as a businessperson who stated he had created ten thousand jobs, and as a Washington outsider with a solid family image and moderate stances on social issues.^[97][105] When Kennedy tried to tie Romney's policies to those of Ronald Reagan and George H. W. Bush, Romney responded, "Look, I was an independent during the time of Reagan-Bush. I'm not trying to take us back to Reagan-Bush."^[106] Romney stated: "Ultimately, this is a campaign about change."^[107] After two decades out of public view, his father George re-emerged during the campaign.^[108][109]

Romney's campaign was effective in portraying Kennedy as soft on crime, but had trouble establishing its own positions in a consistent manner.^[110] By mid-September 1994, polls showed the race to be approximately even.^{[97][111][112]} Kennedy responded with a series of attack ads, which focused on Romney's seemingly shifting political views on issues such as abortion and on the treatment of workers at the Ampad plant owned by Romney's Bain Capital.^{[97][113][114]} The latter was effective in blunting Romney's momentum.^[70] Kennedy and Romney held a widely watched late October debate without a clear winner, but by then, Kennedy had pulled ahead in polls and stayed ahead afterward.^[115] Romney spent $3 million of his own money in the race and more than $7 million overall.^{[116][nb 10]} In the November general election, despite a disastrous showing for Democrats overall, Kennedy won the election with 58 percent of the vote to Romney's 41 percent,^[54] the smallest margin in Kennedy's eight re-election campaigns for the Senate.^[119]