Air Force Academy Graduation (23 images)

Air Force graduating cadets celebrate after receiving their diploma as U.S. President George W. Bush (R) looks on at the United States Air Force Academy graduation ceremony in Colorado Springs, Colorado on May 28, 2008. (UPI Photo/Gary C. Caskey)

An Air Force cadet celebrates at the podium after receiving his diploma at the United States Air Force Academy graduation ceremony in Colorado Springs, Colorado on May 28, 2008. (UPI Photo/Gary C. Caskey)

U.S. President George W. Bush and a cadet hold cigars at the commencement ceremony for the Air Force Academy graduation in Colorado Springs, Colorado on May 28, 2008. (UPI Photo/Christian Murdock/POOL)

U.S. President George W. Bush waves with a cadet at the United States Air Force Academy graduation ceremony in Colorado Springs, Colorado on May 28, 2008. (UPI Photo/Gary C. Caskey)