I rarely disagree with the Washington Post's top wonk Ezra Klein, but I do today. Klein is right that the most politically "lethal" thing about Wisconsin Gov. Scott Walker's 20-minute conversation with a prankster posing as right-wing moneybags David Koch is that it happened at all. But he's wrong when he says "the transcript of the conversation is unexceptional" and that "to Walker's credit, he doesn't say anything incriminating."