Elon Musk's anticipated acquisition of Twitter sent a major ripple across America's endless debates over free expression. The fact is, the question of who gets to say what and where has always been thorny in American society. Not until the twentieth century did the Supreme Court embrace our current, expansive view of the First Amendment. Today the battle is being fought in the cultural space, where social media platforms -- all private companies with their own First Amendment right to moderate posts -- are under pressure to remove "offensive" content and mis- and disinformation. In this episode, Lynn Greenky, author of "When Freedom Speaks," discusses why Americans are fighting one another over this precious freedom.