Intercontinental ballistic missile

An intercontinental ballistic missile (ICBM) is a guided ballistic missile with a minimum range of 5,500 kilometres (3,400 mi) primarily designed for nuclear weapons delivery (delivering one or more thermonuclear warheads). Similarly conventional, chemical and biological weapons can also be delivered with varying effectiveness, but have never been deployed on ICBMs. Most modern designs support multiple independently targetable reentry vehicles (MIRVs), allowing a single missile to carry several warheads, each of which can strike a different target.

Early ICBMs had limited accuracy (circular error probable) that allowed them to be used only against the largest targets such as cities. They were seen as a "safe" basing option, one that would keep the deterrent force close to home where it would be difficult to attack. Attacks against (especially hardened) military targets, if desired, still demanded the use of a more precise manned bomber. This is due to the inverse-square law, which predicts that the amount of energy dispersed from a single point release of energy (such as a thermonuclear blast) dissipates by the inverse of the square of distance from the single point of release. The result is that the power of a nuclear explosion to rupture hardened structures is greatly decreased by the distance from the impact point of the nuclear weapon. So a near-direct hit is generally necessary, as only diminishing returns are gained by increasing bomb yield.

CBS This Morning

CBS This Morning is an American morning television program that is broadcast on CBS. The program, which shares its title with a more traditionally formatted morning program that aired on the network from 1987 to 1999, airs Monday through Saturdays from 7:00 to 9:00 a.m. in all time zones (airing live in the Eastern Time Zone and on tape-delay in the Central and Mountain Time Zones; stations in the Pacific Time Zone receive an updated feed with a specialized opening and updated live reports). It is the tenth distinct morning news-features program format that CBS has aired since 1954, having replaced The Early Show on January 9, 2012.

The weekday edition of the program is currently anchored by Charlie Rose, Gayle King and Norah O'Donnell. The program emphasizes general national and international news stories and in-depth reports throughout each edition, although it also includes live in-studio and pre-taped interviews. The format was chosen as an alternative to the soft news and lifestyle-driven formats of competitors Today and Good Morning America following the first hour or half-hour of those broadcasts, in an attempt to give the program a competitive edge with its hard news format (CBS has historically placed third in the ratings among the network morning shows).

This Morning

This Morning may refer to:

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North Korea

Coordinates: 40°00′N 127°00′E / 40.000°N 127.000°E / 40.000; 127.000

North Korea ( listen), officially the Democratic People's Republic of Korea (DPRK; Chosŏn'gŭl: 조선민주주의인민공화국; hancha: 朝鮮民主主義人民共和國; MR: Chosŏn Minjujuŭi Inmin Konghwaguk), is a country in East Asia, in the northern part of the Korean Peninsula. The name Korea is derived from the Kingdom of Goguryeo, also spelled as Koryŏ. The capital and largest city is Pyongyang. North Korea shares a land border with China to the north and northwest, along the Amnok (Yalu) and Tumen rivers, and a small section of the Tumen River also forms a border with Russia to the northeast. The Korean Demilitarized Zone marks the boundary between North Korea and South Korea.

Korea was annexed by the Empire of Japan in 1910. After the Japanese surrender at the end of World War II in 1945, Korea was divided into two zones by the United States and the Soviet Union, with the north occupied by the Soviets and the south by the Americans. Negotiations on reunification failed, and in 1948 two separate governments were formed: the Democratic People's Republic of Korea in the north, and the Republic of Korea in the south. An invasion initiated by North Korea led to the Korean War (1950–53). Although the Korean Armistice Agreement brought about a ceasefire, no official peace treaty was ever signed. Both states were accepted into the United Nations in 1991.