GI JOE AS SUPERMANThis isn't quite Superman's X-ray vision. But it's close enough to bring giggles to anyone who's ever read a comic book.The U.S. Air Force and Army are co-funding a project that allows, in a limited way, its troops to see through walls. It won't tell soldiers what color underwear Lois Lane is wearing. But it'll give a good idea of where she is in the next room.There are a variety of technological approaches being tested in this program, called, imaginatively enough, "Through the Wall Surveillance." The furthest along relies on a modified radar sending out waves that penetrate wood and concrete, but bounce back when they meet flesh.Check out my Tech Central Station story for more on this program.

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