Defense Secretary Leon E. Panetta conducts a press briefing aboard his military aircraft on Saturday, July 9, 2011, en route to Kabul, Afghanistan. (AP Photo/Paul J. Richards, Pool)

Photo by: Paul J. Richards

Defense Secretary Leon E. Panetta conducts a press briefing aboard his military aircraft on Saturday, July 9, 2011, en route to Kabul, Afghanistan. (AP Photo/Paul J. Richards, Pool)