I'm wondering who everyone thinks the actual leaker is. Remember that Novak stated that it's not who we think it is and that it's a highly placed government official who is "no partisan gunslinger". My gut tells me this is what happened: Cooper calls Rove about welfare reform. At the end of the conversation, he asks Rove about Wilson. Rove tries to warn him off the story, mentioning that Wilson's wife, who apparently works at CIA, arranged for Wilson to go to Niger. Miller catches wind of this conversation, perhaps through a conversation with Cooper or perhaps she asked Rove...