Staff Sgt. Otto Yan, 28th Security Forces Squadron military working dog trainer, and Glenn Meyer, 28th Civil Engineer Squadron deputy commander, compete in the three-legged race segment of The Amazing Race at Ellsworth Air Force Base, S.D., May 3, 2013. The event was a 3-mile course consisting of eight stations where participants had to solve clues and compete in a variety of challenges. (U.S. Air Force photo by Airman 1st Class Anania Tekurio/Released)