Several FReepers predicted this... I can't remember who...
Take your pick:
My money has always been on him.
Rockefeller was on FOX NEWS Sunday (I think before Christmas) and happened to mention that he had travelled to Syria before we invaded Iraq to warn the Syrians that we were going to attack. This received some comment on FR but not the national uproar it should have.
That's when many began believing that, as a member of and at the time of the Iraq invasion I believe chairman of the Intelligence committee, he was the source of these leaks.