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Photos

Snapshots of what’s happening in the Defense Department.

Secretary of Defense Leon E. Panetta holds slate of solar cells as he listens to a Marine officer describe the energy efficiency efforts of the U.S. Marine Corps at the Pentagon's Energy Security Event on Oct. 4, 2012.

Secretary Panetta holds slate of solar cells

Secretary of Defense Leon E. Panetta holds slate of solar cells as he listens to a Marine officer describe the energy efficiency efforts of the U.S. Marine Corps at the Pentagon's Energy Security Event on Oct. 4, 2012.

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