The convergence of heightened terrorist activities and the ease of moving materials, technology and information across borders have made the potential for terrorism involving weapons of mass destruction (WMD) the most serious threat facing the United States and the international community as a whole.

Preventing WMD from falling into the hands of terrorists is a top national security priority. NNSA’s Office of Defense Nuclear Nonproliferation programs reflect the need to protect the United States and its allies from this threat.