Can 3-D Printers Make Plastic Weapons

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From: like PigMine's FaceBook page here: to 15, 2012 - Imagine if you could build a gun by pushing a button on a 3-D printer. CNN's Joe Johns reports. For more CNN videos on YouTube, check out Or visit our site at USE NOTICE: This video may contain copyrighted material. Such material is made available for educational purposes only. This constitutes a 'fair use' of any such copyrighted material as provided for in Title 17 U.S.C. section 106A-117 of the U.S. Copyright Law.

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