I don't see that any "LEAK" necessarily took place.
Sounds to me as if Novak talked to people who simply relayed the background of the story -- that Mrs. Joseph Wilson was instrumental in getting her husband sent to "investigate" the yellowcake story.
Since her status as a CIA employee was common knowledge (according to Cliff May at NRO), that was mere incidental information. NOT a "LEAK."
In fact, that seems to be the case. I have read accounts that Mrs. Wilson was left to discuss this with Mr. Wilson, but the actual decision was made by other at CIA. I have also heard that she was invovled some and thought that he would be a good person to go, because of his previous service in Niger and surrounding countries (such as Gabon).
Indeed, it is well known that she worked for CIA.
It is also well known that she is married to Mr. Wilson.
It is also well known (as cited here on countless threads) that Mr. Wilson himself placed his wife's name (maiden name) on his biography page at the Middle East Institute.
As the Beatles said, "1 and 1 and 1 is 3". Novak is a freakin' investigative reporter. If the CIA didn't tell him her name, it is pretty damn easy to figure out.
It may come out that no one in government tolk Novak the name. In his July 14 article, Novak is investigating how Wilson came to do his investigation in Niger. [SOURCE].
From the original Novak article:
Some excerpts...
The CIA's decision to send retired diplomat Joseph C. Wilson to Africa in February 2002 to investigate possible Iraqi purchases of uranium was made routinely at a low level without Director George Tenet's knowledge.
Wilson's mission was created after an early 2002 report by the Italian intelligence service about attempted uranium purchases from Niger, derived from forged documents prepared by what the CIA calls a "con man." This misinformation, peddled by Italian journalists, spread through the U.S. government. The White House, State Department and Pentagon, and not just Vice President Dick Cheney, asked the CIA to look into it.
Wilson never worked for the CIA, but his wife, Valerie Plame, is an Agency operative on weapons of mass destruction. Two senior administration officials told me Wilson's wife suggested sending him to Niger to investigate the Italian report. The CIA says its counter-proliferation officials selected Wilson and asked his wife to contact him.