Sean O'Keefe

GovernmentSpaceHeads of StateScienceDick CheneyNASA
Sean O'Keefe, left, Administrator of the National Aeronautics and Space Administration, wipes his eye as he sits with his wife Laura, and Vice President Dick Cheney and his wife Lynne, far right, during the memorial service for the crew of the space shuttle Columbia at Washington National... PABLO MARTINEZ MONSIVAIS, ASSOCIATED PRESS
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