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.

Major nuclear disarmament groups include Campaign for Nuclear Disarmament, Greenpeace and International Physicians for the Prevention of Nuclear War. There have been many large anti-nuclear demonstrations and protests. On June 12, 1982, one million people demonstrated in New York City's Central Park against nuclear weapons and for an end to the cold war arms race. It was the largest anti-nuclear protest and the largest political demonstration in American history.

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.

After the Partial Test Ban Treaty (1963), which prohibited atmospheric testing, the movement against nuclear weapons somewhat subsided in the 1970s (and was replaced in part by a movement against nuclear power).

Michael Kirk Douglas (born September 25, 1944) is an American actor and producer, primarily in movies and television. He has won three Golden Globes and two Academy Awards; as producer of 1975's Best Picture, One Flew Over the Cuckoo's Nest, and as Best Actor in 1987 for his role in Wall Street. Douglas received the AFI Life Achievement Award in 2009. He is the eldest of actor Kirk Douglas's four sons.

Douglas was born in New Brunswick, New Jersey, the first child of actor Kirk Douglas and Bermudian-born actress Diana Dill. His paternal grandparents were Jewish immigrants from Gomel in Belarus (at that time a part of the Russian Empire). His mother was from Devonshire Parish, Bermuda; Douglas's maternal grandfather, Lieutenant Colonel Thomas Melville Dill, served as Attorney General of Bermuda and was commanding officer of the Bermuda Militia Artillery. Douglas has a younger brother, Joel Douglas (born 1947), and two paternal half-brothers, Peter Douglas (born 1955) and Eric Douglas (1958–2004), from stepmother Anne Buydens.

Christie Brinkley (born February 2, 1954) is an American model and actress best known for her three consecutive appearances on the cover of the Sports Illustrated Swimsuit Issue in the late 1970s and early 1980s, for her long-running contract with CoverGirl, the longest ever of any model in history, and for her marriage to musician Billy Joel.

Brinkley has also worked as an illustrator, photographer, writer, and designer, and as an activist for human and animal rights and the environment.

Her financial holdings were worth in 2008 an estimated USD $80 million, primarily as the owner of real estate, much of it in the Hamptons. Brinkley is ranked third in the Daily Mail list "World's 20 richest models", released on February 2012.

Born Christie Lee Hudson in Monroe, Michigan, Brinkley is the daughter of Herbert and Marjorie Hudson. Her mother moved to California, where she later married television writer Don Brinkley, and Christie adopted her stepfather's surname. Brinkley attended Palisades High School in Pacific Palisades, California, graduating in 1972. During this time, the family lived in Brentwood, Los Angeles. Brinkley was educated at Le Lycée Français de Los Angeles and moved to Paris to study art in 1973.

Barack Hussein Obama II (ⁱ/bəˈrɑːk huːˈseɪn oʊˈbɑːmə/; born August 4, 1961) is the 44th and current President of the United States. He is the first African American to hold the office. In January 2005, Obama was sworn in as a U.S. Senator in the state of Illinois. He would hold this office until November 2008, when he resigned following his victory in the 2008 presidential election.

Born in Honolulu, Hawaii, Obama is a graduate of Columbia University and Harvard Law School, where he was the president of the Harvard Law Review. He was a community organizer in Chicago before earning his law degree. He worked as a civil rights attorney in Chicago and taught constitutional law at the University of Chicago Law School from 1992 to 2004. He served three terms representing the 13th District in the Illinois Senate from 1997 to 2004.

Following an unsuccessful bid against the Democratic incumbent for a seat in the United States House of Representatives in 2000, Obama ran for the United States Senate in 2004. Several events brought him to national attention during the campaign, including his victory in the March 2004 Illinois Democratic primary for the Senate election and his keynote address at the Democratic National Convention in July 2004. He won election to the U.S. Senate in Illinois in November 2004. His presidential campaign began in February 2007, and after a close campaign in the 2008 Democratic Party presidential primaries against Hillary Rodham Clinton, he won his party's nomination. In the 2008 presidential election, he defeated Republican nominee John McCain, and was inaugurated as president on January 20, 2009. Nine months later, Obama was named the 2009 Nobel Peace Prize laureate. In April 2011, he announced that he would be running for re-election in 2012.