Tough enough?
[Left to right] Airmen 1st Class Devon Thomas and Shawn Tuckett, 22nd Aircraft Maintenance Squadron crew chiefs, don their victory headbands and t-shirts after completing the Tough Mudder challenge June 26, 2011, Beaver Creek, Colo. The Airmen finished the grueling 25-obstacle course in less than two and a half hours. (Air Force photo/ Airman 1st Class Laura L. Valentine)