We're still a few years away from getting some consumer-friendly LCD sunglasses, but wouldn't you know it the military's already rocking a pair. The Office of Naval Research TechSolutions department has delivered the first 30 sets of what it calls Fast-Tint Protective Eyewear (FTPE). They can change tint automatically based on exterior light, much like currently available prescription glasses, but thanks to their LCD construction can go from dark to clear in just a half-second. This means a SEAL squad could blow a door and infiltrate a room without having to ask the terror
