U.S. Air Force Airman 1st Class Chris Villasenor, 633rd Civil Engineer Squadron firefighter, explains the various configurations of a fire truck during a Fire Prevention Week demonstration at the Bethel Youth Programs center, Hampton, Va., Oct. 11, 2012. Personnel of Joint Base Langley-Eustis visited work-centers and family homes to promote fire prevention to Service members, civilians and their dependants. (U.S. Air Force photo by Staff Sgt. Ashley Hawkins/Released)