Joint Chiefs chairman delivers Academy commencement
Cadet 1st Class William Weindel salutes his classmates during the U.S. Air Force Academy class of 2010 graduation ceremonies May 26, 2010, at Falcon Stadium in Colorado Springs Colo. Cadet Weindel, the last cadet to cross the stage to receive his diploma, was honored with the traditional name "Tail End Charlie". (U.S. Air Force photo/Mike Kaplan)