A British art historian, known for his television appearances, is facing a ban by a popular university debating organization after imitating Hitler during a discussion of the topic, “There is no such thing as good taste.” Shortly after the debate, it was revealed that Andrew Graham-Dixon was placed on a “blacklist” of speakers at the Cambridge Union debating and free speech society. The new blacklist was announced by Cambridge Union president Keir Bradwell, BBC News reported. Graham-Dixon said that he was attempting to “underline the utterly evil nature of Hitler" but also apologized for his imitation. “In my speech I...