Pier, 460th Security Forces Squadron military working dog, smells for a training device March 20, 2013, at a training facility on Buckley Air Force Base, Colo. Pier and his handler, Staff Sgt. Marque Daniels, participated in a K-9 training exercise hosted by the 460th SFS along with several K-9 teams from the 460th SFS, Jefferson County Sheriff’s Office, Denver Sheriff Department and Transportation Security Administration.(U.S. Air Force photo by Airman 1st Class Riley Johnson/Released)