Qualls, Transportation Security Administration working dog, finds a training device March 20, 2013, at a training facility on Buckley Air Force Base, Colo. Qualls and his TSA handler, Wyatt Rhoden, were one of several teams that participated in a K-9 training exercise hosted by the 460th Security Forces Squadron. (U.S. Air Force photo by Airman 1st Class Riley Johnson/Released)