This report on Vigilante Gangs of Gunmen in the streets of New Orleans is a chilling reminded that "Good Fences really Don't Make Good Neighbors".
It's one thing to be willing to protect your home, it's another thing to shoot, wound and kill innocent people who just happen to be trying to get back to *their own* home, and it's even worse when don't care to pay attention to the difference - simply because they "Look suspicious" to you.
Not all male blacks, are criminals, some are fathers, all are sons. They don't deserve to be "hunted like pheasants".
More on this at Thinkprogress.org