This book outlines the findings of the bipartisan Commission on the Prevention of Weapons of Mass Destruction Proliferation and Terrorism, established to build on the work of the 9/11 Commission. The Commission's report examines the government's current policies and programs, identifies gaps in prevention strategy and recommends ways to close them. It sets forth the possible threats to the United States if terrorists acquire weapons of mass destruction and provides thirteen recommendations for unilateral and international actions that could increase worldwide safety.