Samuel Burke, a 10-year-old Spokane, Wash., boy fighting a cancerous tumor on his optic nerve, checks out the cockpit of a KC-135 Stratotanker in the maintenance hangar during his tour of various agencies across the installation at Fairchild Air Force Base, Wash., May 4, 2012. Sam is an avid watcher of the Military Channel on television and said he one day would like to join the service. (U.S. Air Force photo/Senior Airman Benjamin Stratton)