In Houston, as in New Orleans after Hurricane Katrina, looting follows as floodwaters recede. Homeowners already ravaged by Hurricane Harvey are finding themselves ravaged yet again by thugs and looters. Nor is Harvey the only hazard. As we approach the height of hurricane season, Hurricane Irma threatens the Caribbean and, potentially, our Atlantic coast. Even beyond natural disasters, residents of Charlottesville, Charlotte, Baltimore, and elsewhere have suffered from America's increasing propensity for riots, looting, and property destruction. As you probably know, you may legally defend yourself using deadly force if you or your family faces a reasonable fear of imminent...