Nuclear Weapons Nonproliferation

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Science  15 Jun 2007:
Vol. 316, Issue 5831, pp. 1541
DOI: 10.1126/science.1142191

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The United States is considering the development and deployment of new nuclear weapon designs, the objective being to sustain the nation's ultimate deterrent for the foreseeable future.* These initiatives are presented as supporting the highest U.S. security priorities, which include countering the threats of terrorism and the proliferation of nuclear weapons--priorities that are widely shared internationally.