David Letterman didn't try to hide the fact last night that he just plain doesn't like Bill O'Reilly. He wasted no time bashing FOX News and doing what few people can do — ridiculing O'Reillys ratings (Letterman's audience is more than 2x as large .) While sparring over Iraq, Letterman interrupted the giant talking head saying he "doesn't care" what Bill has to say. When Bill O, in typical FAUX form, tried to suggest that Dave believes "Bush is an evil liar" and that "America is a bad country" Letterman comes back with the line of the month: