Detailed text transcripts for TV channel - MSNBC - 20131118:19:54:00
Metal detectors is set to expire by the end fd year. pete williams has more. >> reporter: this is what has law enforcement organizations so worried. a plastic gun that can withstand firing several bullets bull cannot be discovered by metal detectors in public buildings and schools and sports arenas and airports. >> this would be really dangerous for travelers and would mean terrorists and criminally mentally ill person could walk through a metal detector completely undetected and be perfectly legal. >> the gun is made using machines called 3d printers now widely available that lay down then la...
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