A MacArthur-supported study from Harvard University’s Project on Managing the Atom examines an ongoing four-year, international effort to secure all nuclear weapons and finds that, three years in, much progress has been made to keep fissile materials out of terrorists’ hands. Progress in Securing Nuclear Weapons and Materials: The Four-Year Effort and Beyond evaluates nuclear security based on criteria like the improvement of ground-level security and the consolidation of stockpiles and cautions that, despite its progress, the effort will not reach its goal of securing all nuclear material by the end of its fourth year.
