http://en.wikipedia.org/wiki/Robert_Novak2005, CNN, Inside Politics
On 4 August 2005, during a live broadcast of the CNN show "Inside Politics," Novak, in response to a remark by fellow guest James Carville, stormed off the set. Carville who had been addressing the camera, said: "He's
got to show these right wingers that he's got a backbone, you know. It's why the Wall Street Journal editorial page is watching you. Show 'em that you're tough." Novak, in response, said "That's bullshit... and I hate that. Just let it go." Then Novak stood, and walked off the set as Carville and correspondant Ed Henry ignored Novak's departure and continued the discussion. Henry later noted that Novak had left the set moments before he was going to ask Novak about his role in the leaking of CIA officer Valerie Plame's identity. Close examination of the videotape reveals a copy of the American edition of Who's Who on Henry's desk, possibly indicating that Henry intended to challenge Novak's claim to have used it to discover Plame's identity.
In response to the incident, CNN suspended Novak indefinitely, calling the outburst ""inexcusable and unacceptable." Spokeswoman Edie Emery also stated that Novak had apologized to the network for his behavior, and that CNN was apologizing to its viewers