During the Cold War between the U.S. and the Soviet Union, the tactical mindset was MAD — Mutually Assured Destruction. Neither party could be sure of who would start a war, but, thanks to awesome destructive forces, they could both be certain that they could end it. Nuclear weapons, the backbone of these arsenals, were simple enough to launch but hard to maintain. The need to keep nuclear weapons primed in turn led the U.S. to develop all types of state-of-the-art maintenance machinery, like the “Beetle”. It was a 77-ton, 27-foot-tall mech.