Herschel Walker, former professional athlete, shakes hands with Staff Sgt. Ned McCaster, 62nd Aircraft Maintenance Unit F-35 integrated avionics specialist, at Luke Air Force Base, Ariz., Oct. 3, 2017. Concluding his speech, Walker conducted a meet-and-greet and photo opportunity for all Airmen in attendance. (U.S. Air Force photo/Airman 1st Class Alexander Cook)