Michael Moore is to liberals as Rush Limbaugh is to conservatives. That is, he's a large, angry, and shamelessly biased media mouthpiece. Moore is the author of such books as "Downsize This!" and "Dude, Where's My Country?"; he's more famous, however, as a filmmaker for his anti-conservative "documentaries" such as Bowling for Columbine, Farenheit 9/11 and SiCKO, which many have decried as inflammatory and needlessly controversial.