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tsr pkg joe johns 3-d guns_00021921
tsr pkg joe johns 3-d guns_00021921

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    Can 3-D printers make plastic weapons?

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Can 3-D printers make plastic weapons?

Imagine if you could build a gun by pushing a button on a 3-D printer. CNN's Joe Johns reports.

Can 3-D printers make plastic weapons?

Imagine if you could build a gun by pushing a button on a 3-D printer. CNN's Joe Johns reports.