President Barack Obama rides in his motorcade vehicle along the tarmac to Marine One, Tuesday, Aug. 9, 2011, at Dover Air Force Base, Del., en route to Washington. Obama made an unannounced trip to ... more 
President Barack Obama rides in his motorcade vehicle along the tarmac to Marine One, Tuesday, Aug. 9, 2011, at Dover Air Force Base, Del., en route to Washington. Obama made an unannounced trip to Dover Air Force Base, Del., to pay tribute to the 30 U.S. troops killed over the weekend in Afghanistan. (AP Photo/Carolyn Kaster) less 
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Associated Press | Photo By Carolyn Kaster
Tue, Aug 9, 2011 7:03 PM EDT