U.S. Air Force Staff Sgt. Sara Huston, 92nd Health Care Operations Squadron medical technician, shows a kid how to use a stethoscope during the Summer Youth Fair at Fairchild Air Force Base, Washington, July 25, 2019. Approximately 100 children from across Fairchild participated in the fair. (U.S. Air Force photo by Airman 1st Class Lawrence Sena)