President Barack Obama walks down the stairs from Air Force One upon his arrival at Andrews Air Force Base, Md., on Friday, Sept. 24, 2010. (AP Photo/Jose Luis Magana)

Photo by: Jose Luis Magana

President Barack Obama walks down the stairs from Air Force One upon his arrival at Andrews Air Force Base, Md., on Friday, Sept. 24, 2010. (AP Photo/Jose Luis Magana)