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This 9 mm semi-automatic handgun is configured with transducers in its handle that can detect the grasp of an authorized user.
New Jersey Institute of Technology/AP
March 18, 2013 What if a gun could only be fired by its rightful owner? What if it recognized a grip or fingerprint, or communicated with a special ring? It's been a fantasy for years, and in the wake of the Sandy Hook tragedy, so-called smart gun technology is back in the spotlight.
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