Gotta go have a good old old fashioned floor fight at my state convention (Go Amos Williams!!), so will have to post more later. But here are the most important passages in Isikoff’s new article:

Armitage acknowledged that he had passed along to Novak informationcontained in a classified State Department memo: that Wilson’s wifeworked on weapons-of-mass-destruction issues at the CIA. (The memo madeno reference to her undercover status.)

[snip]

Fitzgerald found no evidence that Armitage knew of Plame’s covert CIA status when he talked to Novak and Woodward.

I’ll come back and examine whether this means Armitage’s source his leak to Woodward was the first version of the INR memo or not. But this very strong suggests that Armitage only had the information included in the INR memo. That, in turn, strongly suggests he didn’t leak Plame’s cover identity (remember, he told Woodward Plame was an analyst).

Therefore, whoever else leaked to Novak told him that Plame was an operative.