Don't all those controls already exist?
At least in certain states.
You need a license
I'm pretty sure full automatic is illegal (though you can buy conversion kits)
And a quick google search for the penalty for smuggling guns is 20 years and $1million dollars.
(
Cerebus Sticky! Sticky! Stick! Stick!, Fri 20 Jul 2012, 10:44,
Reply)
in some states, yes, in others no.
Mandatory gun licences are certainly not country wide.
(, Fri 20 Jul 2012, 11:14, Reply)