Secretary of Defense Leon E. Panetta prepares to depart from Andrews Air Force Base outside Washington on Monday, March 12, 2012, on a trip to Central Asia. (AP Photo/Scott Olson, Pool)

Photo by: Scott Olson

Secretary of Defense Leon E. Panetta prepares to depart from Andrews Air Force Base outside Washington on Monday, March 12, 2012, on a trip to Central Asia. (AP Photo/Scott Olson, Pool)