Love it or hate it, the freedom to say obnoxious and subversive things is the quintessence of what makes America America. But our say-almost-anything approach to free speech is actually relatively recent, and you can trace it back to one guy: a Supreme Court justice named Oliver Wendell Holmes. Even weirder, you can trace it back to one seemingly ordinary 8-month period in Holmes’s life when he seems to have done a logical U-turn on what should be say-able. Why he changed his mind during those 8 months is one of the greatest mysteries in the history of the Supreme Court. (Spoiler: the answer involves anarchists, a house of truth, and a cry for help from a dear friend.) Join us as we investigate why he changed his mind, how that made the country change its mind, and whether it’s now time to change our minds again. This episode was reported by Latif Nasser and was produced by Sarah Qari. Special thanks to Jenny Lawton, Soren Shade, Kelsey Padgett, and Soroush Vosughi. Support Radiolab
