U.S. Nuclear Weapons Policy: Confronting Today's ThreatsWhat role should nuclear weapons play in today's world? How can the United States promote international security while safeguarding its own interests? U. S. Nuclear Weapons Policy informs this debate with an analysis of current nuclear weapons policies and strategies, including those for deterring, preventing, or preempting nuclear attack; preventing further proliferation, to nations and terrorists; modifying weapons designs; and revising the U. S.