Sen. John McCain, R-Ariz. congratulates 1st Lt. John Pedevillano, a WWII Army-Air Force B-17 bombardier, during a ceremony in his honor, in Washington, D.C., July 7, 2015. Air Force Vice Chief of Staff Gen. Larry O. Spencer and McCain presented Pedevillano with the Presidential Unit Citation award, as the last survivor of his WWII unit. (U.S. Air Force photo/Scott M. Ash)