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A search-and-rescue team searches for bodies in the wreckage of the 2011 tsunami in Iwate Prefecture, Japan. A new device uses microwave technology to detect heartbeats amid the rubble. The dogs are more precise than the device, however. "The dogs are useful because they can go and find exactly where that person is. If there's no one in that pile, we can save the [dog's energy] for another area where someone actually is," says John Price, a program manager in the Department of Homeland Security's (DHS) Science and Technology Directorate.
Not Rated Yet.