In the aftermath of a major cheating scandal, the US Air Force is on a PR offensive. A CBS News crew recently toured a nuclear control center in order to shoot a segment for 60 Minutes. In a behind-the-scenes video released online, CBS' Lesley Stahl talks through her experience touring the facility, revealing her surprise at the aging equipment and relatively inexperienced staff. At one point, a staff member shows Stahl a still-used 8-inch floppy disk, highlighting the tech of the ’70s that helps power the US' nuclear deterrent.