Decades before the impeachment of an American president for a similar offense, Angelo Herndon was charged under Georgia law with "attempting to incite insurrection"--a crime punishable by death. In 1932, the eighteen-year-old Black Communist Party organizer was arrested and had his room illegally searched and his radical literature seized. Charged under an old slave insurrection statute, Herndon was convicted by an all-white jury and sentenced...