Yep - kind of like active hard-drive protection [0]. I could imagine stop-lights turning red at major intersections, elevators stopping and opening at the near

Yep - kind of like active hard-drive protection [0]. I could imagine stop-lights turning red at major intersections, elevators stopping and opening at the nearest floor, BART trains coming to a stop, etc. [0] - http://en.wikipedia.org/wiki/Active_hard-drive_protection http://en.wikipedia.org/wiki/Active_hard-drive_protection