Accusing people of “shouting ‘Fire’ in a crowded theater” isn’t sufficient grounds for regulating what they say. Even people who know about the First Amendment still have trouble believing that someone can make false, irresponsible, even dangerous statements without paying any penalty. For instance, when Francis Collins, the director of the National Institutes of Health, spoke with National Public Radio to promote COVID vaccinations and boosters just before Thanksgiving, he sharply criticized people who intentionally spread misinformation about the vaccine’s safety. “Isn’t this like yelling fire in a crowded theater?” he asked. “Are you really allowed to do that without...