A commercial vehicle drives through the Mobile Vehicle Access Control Inspection System, or VACIS M6500, at Tyndall Air Force Base, Fla., Dec. 22, 2020. The state-of-the-art x-ray machine rapidly scans incoming vehicles carrying building materials and other cargo as part of the five- to seven-year rebuild, conducting searches in under two minutes – a process that normally takes up to 15 minutes – to help process four times the number of vehicles in an hour. (U.S. Air Force photo by Taylor Koopman)