We could try common sense state based back ground checks for posting on the internet. The internet could be electronically monitored, your idea would need check points at state lines for pat downs and vehicle searches.

Of course, illegals already know how to work that pesky border issue, so we have to clarify that your new gun control restriction will only apply to law abiding citizens. Hey there's a thread floating around about a bunch of 223 cases scattered around a crime scene, don't forget those.