> Still, regulated how? What you're talking about is criminal activity. Are regulations the antidote to that? Perhaps similar to pawn shops, which (I think) ha

> Still, regulated how? What you're talking about is criminal activity. Are regulations the antidote to that? Perhaps similar to pawn shops, which (I think) have to keep records of who sold you what. If you are a smelter, you should be able to account for where you get certain expensive metals that you are on-selling.