Fox News has sued Al Franken over the title of Franken's new book, "Lies and the Lying Liars Who Tell Them: A Fair and Balanced Look at the Right." Fox claims to have registered the phrase "Fair & Balanced" as a trademark in 1995. Fox's complaint is surprisingly nasty. It refers to Franken as "shrill and unstable", "either intoxicated or deranged", and a "parasite." I don't know why Fox would sue Franken at all. Prior restraint suits almost always lose. All they've done is give Franken free publicity for his book. Here are articles about the case from the New York Times and the Washington Post. Franken responds in this Associated Press article.