This photo taken May 10, 2013 shows Cody Wilson holding what he calls a Liberator pistol that was completely made on a 3-D-printer at his home in Austin, Texas. Congress is extending a ban on plastic

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This photo taken May 10, 2013 shows Cody Wilson holding what he calls a Liberator pistol that was completely made on a 3-D-printer at his home in Austin, Texas. Congress is extending a ban on plastic firearms that can slip past airport and school metal detectors and X-ray machines, a bittersweet moment for gun control advocates just before the first anniversary of the mass killing at a Connecticut elementary school. (AP Photo/Austin American Statesman, Jay Janner) AUSTIN CHRONICLE OUT, COMMUNITY IMPACT OUT, INTERNET MUST CREDIT PHOTOGRAPHER AND STATESMAN.COM less 

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Associated Press
Tue, Dec 10, 2013 8:46 AM EST