Defense Threat Reduction Agency

The Defense Threat Reduction Agency is an agency within the United States Department of Defense and is the official Combat Support Agency for countering weapons of mass destruction . DTRA's main functions are threat reduction, threat control, combat support, and technology development. The agency is headquartered in Fort Belvoir, Virginia. Wikipedia*

On the C-SPAN Networks:
Defense Threat Reduction Agency has hosted 1 event in the C-SPAN Video Library; the first program was a 2011 Vignette.