Moore's film has exposed millions of people to two hours of unrebutted argument -- the most persuasive kind of speech, said Kathleen Hall Jamieson, director of the Annenberg Public Policy Center. Although she says it's "an open question" whether anyone has been persuaded by the film, she points out that the sheer number of people seeing the film is remarkable during a political campaign. "If millions of people came to a stadium to hear an anti-Bush speech, you'd say that was an amazing moment," she said.
The only comparable phenomenon, she said, is talk radio, which is dominated by conservative hosts such as Rush Limbaugh, Sean Hannity, Bill O'Reilly and Laura Ingraham. "In battle of one-sided communication," Jamieson said, "the right is way ahead."
http://www.washingtonpostcom/wp-dyn/...-2004Jul1.html