Regarding the post below, and the recent polls that show many voters fear that crime is getting worse, with no end in sight, it may be time to reevaluate our posture. On an individual basis, it is wise to not be a victim. Don't go to those places where crime is rampant. Maintain your situational awareness. When faced with an uncomfortable situation, depart.
But, I've been thinking about those merchants who find themselves faced with smash-and-grab mobs, and I've been thinking about the nearly surgical precision of a good marksman with a suppressed .22LR rifle. Many stores have a small office upstairs, overlooking the sales floor, and that might be a good place to over-watch the sales staff. If a mob enters with bludgeons to smash the display cases, or threatens the sales staff, our marksman might be justified in placing shots into large muscle masses, like buttocks or thighs, or shoulders. Think of those shots as marking rounds. The police could canvas local emergency rooms to find anyone so marked, then arrest them.
I'm sure that the lawyers would go stone-crazy when approached with such a plan, but we do have the right to use force to defend lives and property. If a miscreant shows up with lethal force, the marksman inn over-watch would be ideally suited to deal with that as well. I'm just sayin'.