Members of the 320th Missile Squadron missile combat crew, work through a scenario in the 90th Operations Support Squadron's Missile Procedure Trainer on F.E. Warren Air Force Base, Wyo., in June 2014. The MPT is a simulator which allows missile crews to practice contingencies they might face while on alert.
The U.S. nuclear weapons system still runs on a 1970s-era computing system that uses 8-inch floppy disks, according to a newly released report from the Government Accountability Office.
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