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Written testimony of S&T Under Secretary, OHA Assistant Secretary, and DNDO Director for a House Committee on Homeland Security joint subcommittee hearing titled “Weapons of Mass Destruction: Bolstering DHS to Combat Persistent Threats to America”

U.S. Department of Homeland Security (DHS) Science and Technology Directorate (S&T) Under Secretary  Dr. Reginald Brothers, Office of Health Affairs (OHA) Assistant Secretary and Chief Medical Officer Dr. Kathryn Brinsfield, and Domestic Nuclear Detection Office (DNDO) Director Dr. Huban Gowadia address DHS’ work to strengthen departmental unity of effort with regard to chemical, biological, radiological, nuclear, and explosive threats to the nation.

The GCTF collects simulated nuclear debris samples

Nuclear Forensics Exercise Demonstrates Mature Capability

An interagency exercise of the National Technical Nuclear Forensics Ground Collections Task Force was successfully executed at the Nevada National Security Site on February 20-27, 2015.  DHS served as a lead planner and coordinator.

DHS Participates in Exercise in Morocco to Build International Capabilities to Prevent Radiological Terrorism

From February 17-19, 2015, members of DHS’s Domestic Nuclear Detection Office joined a U.S. delegation, led by the State Department, to participate in the Global Initiative to Combat Nuclear Terrorism (GICNT) Implementation and Assessment Group’s Mid-Year Meeting in Rabat, Morocco.  DNDO provided subject matter expertise for this event and played a key role in the planning and facilitation of Atlas Lion, the featured table-top exercise in which the 139 attendees from 30 countries and three official observer organizations participated. 

Fast Neutron Detection

Improving the performance of radiological and nuclear detection technology is critical to enhancing our ability to detect and interdict nuclear threats. The passive detection of fast neutrons is a strong indicator of the presence of certain nuclear materials such as weapons grade plutonium. Fast neutron detection also supports enhanced detection of shielded special nuclear material in various active detection approaches.


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