The genius of Colbert is that the way he presented it you were defensive internally of what he was saying. Questioning what he said. Maybe it was the Republican blowhard persona that made me do that but it worked. Southpark is obviously satire so it makes it a lot easier but Parker and Stone do such a good job of presenting controversial subjects across all media formats without making it seem like they were biased in one way or another. Truly "We Report, You Decide".