rescuers

No, it’s not a robot uprising. This is the Tokyo Fire Department's Rescue Robot, also known as RoboCue, taking a mock patient to safety as part of a training exercise for dirty-bomb containment and casualty rescue, held late last year in Tokyo.

If the World Trade Center attack had occurred at a busier time, it would have taken occupants four hours to get down the stairs—hours they didn’t have. The solution: emergency elevators. Surprising?