Originally Posted by Relentless

Good luck preventing or even tracking gun ownership now that 3D printers are a consumer item.

We are 5 years away from anyone:

1 Buying a block of plastic and a box of springs
2 Downloading a CAD schematic of their favorite gun
3 Printing it in their garage
4 Assembling it with instructions simple enough for any idiot to follow
5 loading it with legal ammo
6 shooting whoever they want with a complete, untraceable, fully-automatic weapon

Unless they get serious about blocking ammunition, all the gun control laws they can imagine will be null in the real world anyway