No American television show of the past decade has been vilified as has Comedy Central's South Park. This is the show that has featured, in turn, a nine-year-old boy enmeshed in an affair with Ben Affleck, a maniacal Mel Gibson smearing feces everywhere, and the misadventures of Mr. Hankey, the Christmas Poo, a talking, bouncing, singing piece of poop. While it's not always an exercise in good taste, South Park is a socially significant...