Senior Airman Kristina Macias, 28th Medical Operations Squadron public health technician, completes a checklist following an Airman’s deployment briefing at the Public Health clinic on Ellsworth Air Force Base, S.D., March 28, 2013. The checklist is used to certify that deploying Airmen have been briefed on mandatory information for their specific deployed location that helps keep them safe and healthy throughout their time overseas. (U.S. Air Force photo by Airman 1st Class Kate Thornton-Maurer/Released)