Passed in June 1940, the Smith Act was a peacetime anti-sedition law that marked a dramatic shift in the legal definition of free speech protection in America by criminalizing the advocacy of disloyalty to the government by force. It also criminalized the acts of printing, publishing, or distributing anything advocating such sedition and made it illegal to organize or belong to any association that did the same. It was first brought to trial in July 1941, when a federal grand jury in Minneapolis indicted twenty-nine Socialist Workers Party members, fifteen of whom also belonged to the...