https://motherboard.vice.com/en_us/article/wjkzz4/the-self-defeating-legal-panic-over-3d-printed-guns-is-5-years-too-late

We are in the midst of a belated moral and legal panic about homemade, 3D-printed guns that will likely do nothing besides make them more popular.

Nine state attorneys general filed a lawsuit Monday against the Trump administration and Defense Distributed, an Austin, Texas company that uploads designs for 3D-printed guns to its website (the gun designs are free, but it sells the “Ghost Gunner” tabletop gun-milling machine.)