Book bans, disinformation, the wild world of the internet. Free speech debates are all around us.What were the Founding Fathers were thinking when they created the First Amendment, and how have the words they wrote in the 18th century been stretched and shaped to fit a world they never could have imagined?It's a story that travels through world wars and culture wars. Through the highest courts and the Ku Klux Klan. What exactly is free speech, and how has the answer to that question changed in the history of the U.S.?