U.S. Air Force Airman 1st Class Katherine Street, 355th Logistics Readiness Squadron vehicle operator, scans items ready for delivery at Davis-Monthan Air Force Base, Ariz., Dec. 14, 2016. With the addition of Wi-Fi hot spots, dramatic reductions of unsuccessful signature transfers, saving time on backtracking and verification. (U.S. Air Force photo by Senior Airman Ashley N. Steffen)