Air Force Staff Sgt. Angelo Corpuz, a public health specialist assigned to the 35th Aerospace Medicine Squadron at Misawa Air Base, Japan, shines a black light on a Fijian student’s hand after dabbing it with a non-toxic compound designed to show up under the black light to help children learn the importance of proper hand-washing during Pacific Angel 17-3 at the Tagitagi Sangam School and Kindergarten in Tavua, Fiji, July 17, 2017. Air Force photo by Tech. Sgt. Benjamin W. Stratton