U.S. President Obama salutes as he arrives for the Air Force Academy commencement ceremony in Colorado

 
U.S. President Obama salutes as he arrives for the Air Force Academy commencement ceremony in Colorado
U.S. President Barack Obama salutes as he arrives for the Air Force Academy commencement ceremony in Colorado Springs, Colorado May 23, 2012. REUTERS/Kevin Lamarque (UNITED STATES - Tags: POLITICS MILITARY)