The Bureau of International Security and Nonproliferation (ISN) main web page, created by the U.S. Department of State, describes the purpose of the Bureau. The site states that among other duties, it spearheads efforts to promote international consensus on weapons of mass destruction (WMD), addresses WMD proliferation threats posed by terrorist groups, and supports efforts of the international community to protect against the threat o ...
missions.llnl.gov/?q=nonproliferation
The Global Security Nonproliferation Program operates out of the Lawrence Livermore National Laboratory (LLNL) for the Department of Energy