Science, Technology, and Public Policy

In this Project on Managing the Atom Discussion Paper, Philipp C. Bleek chronicles nuclear weapons proliferation choices throughout the nuclear age. Since the late 1930s and early 1940s, some thirty-one countries are known to have at least explored the possibility of establishing a nuclear weapons program. Seventeen of those countries launched weapons programs, and ten acquired deliverable nuclear weapons.

The abstracts in this booklet summarise the research presented at an academic symposium convened on the sidelines of the 2015 NPT Review Conference. As we write this, journalists and seasoned experts in the nuclear policy field have been speculating about the particularly difficult challenges facing the Review Conference this year. To address those challenges, we would urge all concerned to consider the ideas and analyses presented at this symposium. Experts would be hard-pressed to find a better collection of fresh ideas and approaches for assessing and strengthening the NPT.

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.

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.

Given the seriousness of the ongoing standoff on the Korean peninsula, South Korea's emergence as an active contributor to international security addressing challenges far from the Korean peninsula is a striking new development, marking South Korea's emergence as a producer rather than a consumer of global security resources. This volume outlines South Korea's progress and accomplishments toward enhancing its role and reputation as a contributor to international security.

Without significant change in the geopolitical landscape, nuclear weapons will remain a relevant portion of America's long-term national security strategy. Therefore, the burdens and responsibilities of maintaining an effective nuclear deterrent force are paramount to ensure credibility for America and her allies. Bottom line: nuclear weapons and nuclear deterrence are still relevant today and for the foreseeable future. Therefore, to maintian international strategic stability we must embrace the necessity of nuclear deterrence, develop strategic policy that supports deterrence as an essential element and adequately resource the enterprise.

The latest report in the ongoing MTA / NTI collaboration, Securing the Bomb 2006, finds that even though the gap between the threat of nuclear terrorism and the response has narrowed in recent years, there remains an unacceptable danger that terrorists might succeed in their quest to get and use a nuclear bomb. 

Leaders at the 2010 nuclear security summit agreed on the goal of securing all vulnerable nuclear material in four years, but the factors that drive and/or constrain nuclear security changes are not well understood. Matthew Bunn and Eben Harrell surveyed nuclear security professionals in countries with nuclear weapons, HEU, or separated plutonium to explore this issue. This paper describes the survey, its results, and implications for strengthening global nuclear security.