President Barack Obama mingles before the meeting on Afghanistan during the NATO Summit, Monday, May 21, 2012, in Chicago. (AP Photo/Carolyn Kaster)

Associated Press
President Barack Obama mingles before the meeting on Afghanistan during the NATO Summit, Monday, May 21, 2012, in Chicago. (AP Photo/Carolyn Kaster)
President Barack Obama mingles before the meeting on Afghanistan during the NATO Summit, Monday, May 21, 2012, in Chicago. (AP Photo/Carolyn Kaster)