The protectors: working with man's best friend
U.S. Air Force Staff Sgt. Steven Perez, 27th Special Operations Security Forces Squadron military working dog handler, performs a detection exercise with his K-9 unit near a warehouse at Cannon Air Force Base, N.M., March 15, 2012. All K-9 units assigned to Cannon are dual purpose patrol and detections canines responsible for protecting base personnel and resources. (U.S. Air Force photo by Airman 1st Class Alexxis Pons Abascal)