In retrospect, and despite setbacks, the overall impact of the Nuclear Non-Proliferation Treaty has been significant and gratifying. Its continued success is by no means guaranteed. As old nuclear dangers persist and new ones evolve, policies to halt nuclear proliferation are more disparate than at any other time. Nuclear weapons remain an essential part of the security policies of leading states and many developmental states maintain strong nuclear weapon ambitions, while terrorists have actively been seeking nuclear capabilities. In search of an overarching strategy that recognizes both the flaws of the existing non-proliferation regime, and the value of some of the corrections proposed by regime critics, this volume assesses contemporary efforts to stem nuclear proliferation. In doing so, examines a number of cases with a view to recommending better non-proliferation tools and strategies. The contributors comprise renowned international scholars, who have been selected to obtain the best possible analyses of critically important issues related to international non-proliferation dynamics and the future integrity of the Non-Proliferation Treaty.