Missouri Revised Statutes Title XXXVI. Statutory Actions and Torts § 537.105. Radio station not liable for defamation, when

The owner, licensee or operator of a visual or sound radio broadcasting station or network of stations, or the agents or employees of such owner, licensee or operator of such a station or network of stations, shall not be liable for any damages for any defamatory statement uttered over the facilities of such station or network by or on behalf of any candidate for public office where such statement is not subject to censorship or control by reason of any federal statute or any ruling or order of the Federal Communications Commission made pursuant thereto.