Twitter censors user for quoting Marx: A Twitter user shared a screenshot of another user's censorship notice. The censored user had tweeted: "@JoyAnnReid '[Pierre Tremaux] proved that the common Negro type is the degenerate form of a much higher one ... a very significant advance over Darwin.' Karl Marx, letter to Friedrich Engels, August 7, 1866 Sounds like real equality coming from Marx there." Twitter claimed this violated its "rules against hateful conduct." The user's account was locked until he deleted the tweet.