Soon people will be able to manufacture their own guns and gun parts with a 3-D printer, and some gun control advocates are describing this a threat to the nation. CNN's Athena Jones has the details.
원문출처 : https://www.cnn.com/videos/us/2018/07/30/3d-printed-guns-jones-pkg-vpx.cnn
원문출처 : https://www.cnn.com/videos/us/2018/07/30/3d-printed-guns-jones-pkg-vpx.cnn