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PBS News Hour
How some states are fighting to stop 3D-printed guns
In 2013, a gun rights enthusiast posted designs online for a 3D-printed, functional handgun. In June, the State Department reversed a past decision and allowed it to be posted online by Texas-based group. Attorneys general from eight states and the District of Columbia have filed a lawsuit in a last-ditch effort. John Yang gets reaction from Pennsylvania Attorney General Josh Shapiro.
