Ed Butler, a medically-retired U.S. Army veteran, and his granddaughter, Makennah Woods, admire a B-1B while Staff Sgt. Courtney Armstrong, 28th Aircraft Maintenance Squadron crew chief, provides information during a tour at Ellsworth Air Force Base, S.D., Jan. 17, 2012. Butler requested a visit with the B-1 as one of his last wishes after diagnosed with terminal cancer. (U.S. Air Force photo by Airman 1st Class Kate Thornton/Released)