I was surprised to find out a few months ago that second-hand gun sales in America don't require any vetting like buying a new gun does.
One thing I've very curious about. How come bullets, guns and all this other paraphenalia isn't logged on a national database? It's almost impossible to buy a car in the UK without ID, and a confirmed address. Would it be so difficult to ensure that all firearms made are tracked by owner, and if you sell a firearm without proper identification and reporting it, you get a massive fine?
And would it be beyond the realms of possibility to label each bullet so you know where it was made and sold? They can do it with eggs so can't imagine a bullet would be harder.
I know people would find ways around these systems but it would mean finding the responsible shooter in any incident would be a lot easier. But that's what they're avoiding isn't it. People may not buy their guns and ammo if it means they lose the annonymity if they decide to kill someone.
No one has bought a pistol without having the thought of when they'd shoot someone with it. That's disturbing.