In most instances, of course, libel suits against the mass media result form statements that were actually published or broadcast; proving the dissemination element is not difficult in those cases. It should be reiterated that everyone who furthers the dissemination of a libel can be sued. Even though the defamation first appeared in a letter to the editor, in public speech, or even in a wire service dispatch, with few exceptions every publisher or broadcaster who further disseminates it can be sued (as can the originator of the libel or slander).
Major Principles of Media Law 2008 Edition