According to today's article by John Dean
http://writ.news.findlaw.com/dean/20050715.html , if a reporter told Rove about Valerie Plame's CIA connection "it could make for some interesting pairing under the federal conspiracy statute (which was the statute most commonly employed during Watergate)." Dean was referring to the suggestion that some have made that Judith Miller may have told Rove about Plame. But since the NYT is now reporting that Rove was told by Novak
http://www.nytimes.com/2005/07/15/politics/15rove.html? the same should apply.
More below
The Dean article has a link to the federal statute which targets people conspiring "either to commit any offense against the United States, or to defraud the United States". A little strange to me that that's what the Watergate prosecutors primarily used, but Dean would certainly know.
I'm not sure how the fact that Rove replied to Novak that he had "heard that too", but the prospect of that moron being frogmarched off, maybe even chained directly to the evil one, is too delicious for words. We should be watching for the possible application of this statute (for this or any other "interesting pairings").