"Netflix For 3-D Guns"

Gun advocates have denounced Wilson's latest move, saying it will lead to the proliferation of 3-D printed weapons. Guns that are printed don't have a serial number and are considered "ghost guns," mostly because the government cannot track them. 

"The biggest concern with 3-D-printed guns and the technical data for them is that they're not traceable," said Kelly Sampson, counsel at Brady: United Against Gun Violence, a gun-control group. "It's a huge loophole and opportunity for people who would otherwise be unable to access firearms to be able to do so."