Luke Airmen Participate in Tough Mudder
Tech. Sgt. John Knighten, 412th Maintenance Squadron electronics section supervisor, Edwards Air Force Base, Calif., left, and Staff Sgt. Patricia Radomski, 310th Aircraft Maintenance Unit, Luke Air Force Base, Ariz., climb down a rope ladder in the Tough Mudder Jan. 14 at the Mesa Proving Grounds in Mesa, Ariz. (U.S. Air Force photo by Airman 1st Class David Owsianka)