Reports & Papers

In trying to prevent adversaries from acquiring new military capabilities, countries often employ strategies of arms denial; e.g., “unilateral diplomacy,” supply chain interdiction, covert sabotage, and targeted military strikes. Using a game-theoretical model of weapons acquisition and denial, the authors posit that the prevalence of this approach gives rise to strategic effects that affect all players’ behavior.

In the lead-up to the nuclear security summit, Advancing Nuclear Security: Evaluating Progress and Setting New Goals outlines what was accomplished in a four-year effort launched in 2009 to secure nuclear material around the globe—and what remains to be done. The effort made significant progress, but some weapons-usable nuclear materials still remain “dangerously vulnerable." The authors highlight the continuing danger of nuclear and radiological terrorism and call for urgent action.

A long-standing goal of diplomacy with Iran is persuading Iran to suspend its enrichment operations while it clarifies its past activities and while negotiations proceed on a more permanent resolution to the nuclear crisis. However, there is problem in using suspension of nuclear material production as a negotiating step: The technical details of suspension have never been clearly defined. The international community needs to be aware of the diversion risks during a suspension of enrichment activities and should mitigate these risks by including the necessary verification measures during negotiations and signing of any agreement on suspension.

Despite substantial progress in improving nuclear security in recent years, there is more to be done.  The threats of nuclear theft and terrorism remain very real.  This paper recommends learning from the much stronger national and international efforts in nuclear safety, and in particular taking steps to build international understanding of the threat; establish effective performance objectives; assure performance; train and certify needed personnel; build security culture and exchange best practices; reduce the number of sites that need to be protected; and strengthen the international framework and continue the dialogue once leaders are no longer meeting regularly at the summit level.

This National Security Advisory Group report provides a new comprehensive strategy for reducing nuclear threats and preventing nuclear terrorism.

The Preventive Defense Project convened a workshop of leading federal government civilian and military officials, scientists, policy experts, and journalists in Washington, D.C. to address "The Day After: Action in the 24 Hours Following a Nuclear Blast in an American City."

Matthew Bunn and Anthony Wier find that although threat reduction funding has had dramatic effects in reducing the risk of nuclear terrorism, the Bush administration’s proposed FY 2008 budget for cooperative threat reduction would reduce the overall funds available.  They propose a number of remedies, some of which have been taken up by congress in the appropriations process.

Sean P. Hazlett's Policy Analysis Exercise examines U.S. policy options for addressing Iran's nuclear weapons program.