Three-year-old Addison Johnson, daughter of U.S. Air Force Tech. Sgt. Brent Johnson, hugs Sparky the Fire Dog at Langley Air Force Base, Va., Oct. 10, 2012. The 633rd Civil Engineer Squadron introduced Sparky 61 years ago to teach children safety during Fire Prevention Week. (U.S. Air Force photo by Airman 1st Class Teresa Aber/Released)