The following is a guest post by John McKee Barr, who teaches history at Lone Star College–Kingwood and is the author of Loathing Lincoln: An American Tradition from the Civil War to the Present.  George Orwell once said that “if liberty means anything at all, it means the right to tell people what they do not want to hear.” Sadly, Orwell’s exhortation to freedom of speech has been all too often violated in U.S. history, especially regarding the lives and ideas of Charles Darwin and Abraham Lincoln (both of whom, it might be noted, were born on the same day, Read more