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1 (October 10, 2006)

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                                                                Order Code RS21391
                                                           Updated  October 10, 2006



 CRS Report for Congress

              Received through the CRS Web



          North Korea's Nuclear Weapons:

                    Latest Developments

                           Sharon  Squassoni
                      Specialist in National Defense
              Foreign  Affairs, Defense, and Trade Division

Summary


     On October 9, 2006, North Korea announced it conducted a nuclear test. It is not
 yet clear whether North Korea achieved a nuclear yield and if so, how big. North Korea
 ended an eight-year freeze on its plutonium production program in 2002, expelling
 international inspectors and restarting facilities. Whereas many believed North Korea
 might have had enough plutonium (Pu) for one or two weapons in then, North Korea
 may now have enough Pu for six or eight more weapons. In 2005, North Korea
 announced it had nuclear weapons, but rejoined the Six-Party Talks in July and agreed
 to abandon its nuclear weapons program in September 2005. The failure of the talks has
 allowed North Korea to continue to produce fissile material for nuclear weapons. The
 United States and other countries have condemned the North Korean nuclear test and
 called for sanctions. This report will be updated as needed.


 Background

    In the early1980s, U.S. satellites tracked a growing indigenous nuclear program in
North Korea. A small nuclear reactor at Yongbyon (5MWe), capable of producing about
6kg of plutonium per year, began operating in 1986.1 Later that year, U.S. satellites
detected high explosives testing and a new plant to separate plutonium. In addition,
construction of two larger reactors (50MWe at Yongbyon and 200MWe at Taechon)
added to evidence of a serious clandestine effort. Although North Korea had joined the
Nuclear Nonproliferation Treaty in 1985, the safeguards inspections that began only in
1992 raised questions about how much plutonium North Korea had produced covertly.
In 1994, North Korea pledged, under the Agreed Framework with the United States, to
freeze its plutonium programs and eventually dismantle them in return for several kinds


Congressional  Research  Service +  The Library of Congress


1 5MWe is a power rating for the reactor, indicating that it produces 5 million watts of electricity
per day (very small). Reactors are also described in terms of million watts of heat (MW thermal).

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