I haven't said anything on the Plame outing controversy largely because so much is unknown. Given the complex relationship (to say the least) between the CIA and the Bush Whitehouse, this story could be a Rove outing, or an attempt by the CIA to discredit the President. Or it could be both of these things.
Two years ago Howard Fineman wrote an excellent article detailing this complex history, and I've attached it here. Fineman's guess at the time was that Rove did intentionally "out" Plame, but I am not so sure. Since this article was written, we've found out more about Wilson's lies, and followed the bizarre, for an outed spy, behavior of Ms. Plame. At any rate, Fineman's background is a must read.