Senior Airman Christopher Daniel, a 28th Operation Support Squadron air traffic control (ATC) trainer, displays the new cloud-based training system in front of the old ATC training simulators at Ellsworth Air Force Base, S.D., April 15, 2021. The new training system was adopted earlier this year and allows ATC Airmen to train anytime, anywhere with a Wi-Fi connection. (U.S. Air Force photo by Staff Sgt. Hannah Malone)