Secretary of Defense Chuck Hagel, left foreground,
Summary
Secretary of Defense Chuck Hagel, left foreground, receives a briefing from Arati Prabhakar, the director of the Defense Advanced Research Projects Agency, on the role of the agency's technologies in national security April 22, 2014, at the Pentagon in Arlington, Va. (DoD photo by Sgt. Aaron Hostutler, U.S. Marine Corps/Released)
Tags
Date
22/04/2014
Location
Source
Defense Visual Information Distribution Service
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