PHOTO OF THE DAY: Defense Secretary Robert Gates smiles while participating in a Senate Defense Subcommittee hearing on proposed budget estimates for fiscal year 2012 for the Defense Department, on Wednesday. Gates said this would he his last appearance before Congressional committee before retiring at the end of June. (Mark Wilson/Getty Images)
PHOTO OF THE DAY: U.S. Defense Secretary Robert Gates stands with United Kingdom Secretary of Defense Liam Fox upon his arrival to the Pentagon on Tuesday. (JIM WATSON/AFP/Getty Images)
