Senior Airman Jasmine Helm-Lucas, 341st Munitions Squadron munitions controller, logs information on spreadsheets June 19, 2017, at Malmstrom Air Force Base, Mont. Tight security is in place due to the nature of the nuclear deterrence mission at Malmstrom and every movement and piece of maintenance conducted on reentry systems and vehicles is logged on a spreadsheet for accountability. (U.S. Air Force photo/Airman 1st Class Daniel Brosam)