Shuttle Defense

Each time the space shuttle rises from its launchpad at Cape Canaveral, Fla., an Air Force officer waits anxiously for the first 2 minutes to pass safely. If the spaceship were to veer off course and endanger a populated area, this range safety officer would bear the terrible responsibility of flipping a pair of switches under a stenciled panel reading “Flight Termination.” The first switch arms explosives on the shuttle’s two solid rocket boosters. Flipping the second switch would detonate them, destroying the shuttle and crew. (Full Story at popularmechanics)

Who knew? i guess this is the type thing NASA doesn't exactly want to chat about much.