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Radars That See Through Walls

according to USA Today, at least 50 law enforcement agencies in the US, including the FBI and the US Marshals, have been stocking up on handheld radars for the past two years. It's powerful enough to detect movement and even breathing within 50 feet, through wood, glass, dirt and most other materials used for walls, even behind one-foot thick walls of concrete. http://goo.gl/duL9mo #tech

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