An "assault-weapons" ban represents the worst form of gun control. We know it would burden the self-defense rights of law-abiding Americans without meaningfully addressing the problems it’s purportedly designed to address. We know it wouldn’t impact overall gun death rates. We don’t have evidence it would prevent mass shootings. Given that reality, it looks much less like rational policy-making and much more like legislative emoting — a moral gesture with the primary impact of diminishing American constitutional rights.