I think the only way to do it was directly from the factory. There is almost no way to know if the 50 million Walmart trucks are carrying ammo. Besides, I tend to believe that the vast majority of us on TFL are law abiding citizens. For any of us to turn to crime, things would have to be VERY DIRE. Now if zombies appeared, all bets are off!
The ATF should be a convenience store instead of a government agency!