[Rick Lee]

"It also calls for keeping a record each time the Bureau of Alcohol, Tobacco, Firearms and Explosives links a gun bought at Wal-Mart to a crime. If a person who buys a gun linked to a crime were to return to a Wal-Mart to buy another gun, the purchase would be flagged. It would then be up to the store whether to permit the purchase."

I kinda wonder about this one. Seems to me, someone who buys a gun that later turns up in a crime has probably already gotten a visit or two from the BATF before they even think about buying another gun. Unless they have a police report to show the gun was stolen from them before it showed up in a crime, I'd imagine they're flagged in the NICS system and any gun store would do a little extra due dilligence.