Graduates toss their caps in the air as World War II aircrafts fly over head during the United States Air Force Academy graduation ceremony at Falcon Stadium in Colorado Springs, CO May 29, 2013. Secretary of the Air Force, Mr. Michael B. Donley presented diplomas to the, over 1000, newly commissioned Second Lieutenants. (Photo By Craig F. Walker/The Denver Post) ( CDAIRFORCEGRAD_CDAIRFORCEGRAD_17212 )