An Airman tests the airworthiness requirements of a Portable Bio-Containment Module while aboard a C-17 Globemaster III at Joint Base Charleston, S.C., April 14, 2020. Members of the Air Force Operational Test and Evaluation Center’s Detachment 2 test team are testing the modules as an option to provide the necessary transport of patients infected with COVID-19 from overseas. (U.S. Air Force courtesy photo)