Liar in a Crowded Theater: Freedom of Speech in a World of Misinformation

Thanks to the First Amendment, Americans enjoy a rare privilege: the constitutional right to lie. And although controversial, they should continue to enjoy this right.

When commentators and politicians discuss misinformation, they often repeat five words: "fire in a crowded theater." Though governments can, if they choose, attempt to ban harmful lies, propaganda, misinformation, and disinformation, how effective will their efforts really be? Can they punish someone for yelling "fire" in a crowded theater—and would those lies then have any less impact? How do governments around the world respond to the spread of misinformation, and when should the US government protect the free speech of liars?

In Liar in a Crowded Theater, law professor Jeff Kosseff addresses the pervasiveness of lies, the legal protections they enjoy, the harm they cause, and how to combat them. From the COVID-19 pandemic to the 2016 and 2020 presidential elections and the January 6,...