I did just recently read an article (not sure where, I think NY Times) that was speaking of obstacles to gun control. They stated (Wish I could quote it, can't find it anymore) that there is specific legislation put in place to bar the ATF from developing a firearms registry of who owns a firearm. I think the only leverage it has over people is in NFA land, but this would essentially develop the registry that isn't allowed since it would be so widespread... If someone knows which article I'm talking about, please post it
.