Staff Sgt. Codi Carter, 11th Security Forces Support Squadron military working dog trainer, speaks to priests about what military working dogs do during a base tour Oct. 7, 2015 at Joint Base Andrews, Md. The tour included visiting the 1st Helicopter Squadron, 811th Operation Support Squadron and 11th Security Support Squadron military working dog flight. (Air Force photo by Senior Airman Dylan Nuckolls/Released)