**GAO-10-883T**                      Published: Jun 30, 2010. Publicly Released: Jun 30, 2010.                  

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## Highlights

In April 2005, a Presidential Directive established the Domestic Nuclear Detection Office (DNDO) within the Department of Homeland Security (DHS) to enhance and coordinate federal, state, and local efforts to combat nuclear smuggling abroad and domestically. DNDO was directed to develop, in coordination with the departments of Defense, Energy, and State, an enhanced global nuclear detection system of radiation detection equipment and interdiction activities. (DNDO refers to this system as an architecture.) DNDO is to implement the domestic portion of the architecture. Federal efforts to combat nuclear smuggling have largely focused on established ports of entry, such as seaports and land border crossings, and DNDO has also been examining nuclear detection strategies along other pathways. Over the past 7 years, GAO has issued numerous recommendations on nuclear or radiological detection to the Secretary of Homeland Security, most recently in January 2009. This testimony discusses the status of DHS efforts to (1) complete the deployment of radiation detection equipment to scan all cargo and conveyances entering the United States at ports of entry, (2) prevent smuggling of nuclear or radiological materials via the critical gaps DNDO identified, and (3) develop a strategic plan for the global nuclear detection architecture. GAO's testimony is based on prior work that was updated by obtaining DHS documents and interviewing DHS officials.

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## Topics

Homeland Security

AccountabilityAircraftAirlinesAirportsAviationBaggageBaggage screeningBorder securityCargo screeningCargo securityCommercial aviationHarborsHomeland securityInternational cooperationMonitoringNuclear materialsNuclear radiation monitoringPassengersPort securityRadiation monitoringRail securitySmugglingStrategic planningRadiation detection