Biden administration cracks down on 3D-printed 'ghost guns'

The Biden administration is taking new measures that would limit the spread of 3D-printed guns. The Justice Department has issued a final rule with multiple measures restricting the sale and distribution of "ghost guns," including a requirement for federally licensed dealers and gunsmiths to serialize any unmarked firearm (such as a 3D-printed gun) before selling it to a customer. You couldn't print a gun at home and sell it to a store without some ability to trace its origins. The rule also inc...