If Rap is indeed leaving this thread (he was posting as I was typing), I don't suppose I'll get a direct answer.
But I put for the record, that I divide the issue into 2 parts...

1)What SHOULD we have as a sane, reasonable situation

2)What should we do, considering the facts about how many weapons are already IN private hands.

I think that olddude is on the right track regarding #2.... it is just too easy to GET guns.... but I also believe that tightening laws about gun shows will do very little to control access to guns by the seriously dangerous folk who intend to commit violence. It may make it harder for the average guy to buy a gun on a whim, and thus might limit some in-home tragedies...but there are always guns available. The prices might go up.... but really crazy folks will raise the money.