As short barreled guns and suppressors have a history of rarely being used in crimes, I feel as though the NFA laws serve no useful purpose. When it was decided that no fully auto weapons manufactured after a certain date would be available for purchase by law abiding citizens, that also serves no purpose. Laws are supposed to solve a problem. When the laws are the problem, they need to be eliminated; just like the laws forbidding "switch blade knives" in Indiana. I'd say that crooked FFL's manufacturing prohibited items and selling guns to "improper persons" have been more of a problem than the wrongful use of NFA controlled items. In a former life, I encountered an ATF agent who couldn't tell a non-firearm, i.e. muzzleloader or air gun from a firearm. It seems to me that ATF also bends to the current political winds. They certainly learned some lessons after Waco.