President Barack Obama walks down the stairs from Air Force One upon arrival to Andrews Air Force Base, Md., Saturday, March, 17, 2012. (AP Photo/Jose Luis Magana)

Associated Press
President Barack Obama walks down the stairs from Air Force One upon arrival to Andrews Air Force Base, Md., Saturday, March, 17, 2012. (AP Photo/Jose Luis Magana)
President Barack Obama walks down the stairs from Air Force One upon arrival to Andrews Air Force Base, Md., Saturday, March, 17, 2012. (AP Photo/Jose Luis Magana)
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