You sir, are not a student of history. During the Rodney King riots the only shopkeepers to save their businesses were the Vietnamese with M-16's locked and loaded. Rioters are basically chickenshit herd animals no different than stampeding cattle. You shoot the lead bull, and they move on to easier pickin's. I clearly remember the scene of Vietnamese standing together to protect property and lives. Cops wouldn't even go into the "hood", but neighbors banned together in armed militia stopped that crap. The exact same scenario played out in small towns all over the Katrina disaster area. Do you know why you only saw looting in Nawlins? They don't call Louisiana the sportsman's paradise for nothing. EVERYONE HAS GUNS. In Poplarville Miss. the citizens organized armed neighborhood watches and lost no homes to the looters. They did move into town, but went around after shotgun blasts across the open field said "Looters Not Welcome".
Get out of my foxhole!
A slight correction: Those were Korean shopkeepers defending themselves during the Rodney King riots.