Published online by Cambridge University Press: 05 June 2012
ABSTRACT. At the end of the Cold War, the United States and Russia entered into agreements that reduced the numbers of nuclear weapons in their arsenals. The possibility that excess plutonium recovered from dismantled weapons could fall into the hands of terrorists has been characterized as a “clear and present danger” by the National Academy of Sciences. Other disposition considerations include plutonium's potential for use as an energy source and its environmental impacts. A team of U.S. decision analysts was commissioned by the Department of Energy's Office of Fissile Materials Disposition to develop a multiattribute utility model to help evaluate alternatives for the disposition of the excess-weapons plutonium. Subsequent to the U.S. study, Russian scientists modified the model with the aid of the U.S. team, and used it to evaluate Russian disposition alternatives.
At the end of the Cold War, the United States and Russia entered into arms limitations and reduction agreements that reduced the numbers of nuclear weapons that would be in the arsenals of each nation. When these nuclear weapons are dismantled, plutonium pits – the triggers for modern nuclear weapons – are stored in anticipation of their ultimate disposal. Estimates of the numbers of weapons to be dismantled vary, but may be on the order of 15,000 in the United States and perhaps twice that many in Russia [NAS 95].
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