Former Chief Master Sgt. of the Air Force Rodney McKinley gets his blood pressure checked by Airman 1st Class Britney Harrington, a 7th Medical Group aerospace medical technician, during a tour of the 7th MG on Dyess Air Force Base, Texas Feb. 10, 2017. McKinley began his career in 1974 as an emergency room technician at Seymour Johnson AFB, N.C. (U.S. Air Force photo by Airman 1st Class Emily Copeland)