Air Traffic Control Air traffic controllers from 75th Operations Support Squadron man the tower at Hill Air Force Base, Utah, April 8, 2020. The tower's tight quarters make it difficult to maintain social distancing, which requires them to wear surgical masks and routinely sanitize the area. SHARE: Download: Full Size (2.63 MB) Tags: air force, coronavirus Credit: Cynthia Griggs, Air Force VIRIN: 200408-F-EF974-1044C.JPG Photo Gallery