[ QUOTE ]
If they ever find out who leaked the story, will that individual(s) face criminal charges?
[/ QUOTE ]
Unless Rove leaked it to Novak, there is no problem, since it was Novak that informed the world. Rove had no reason to warn Novak off boostering Wilson (the husband) because Novak isn't a liberal dedicated to boostering administration opponents (unlike the TIME and NYT reporters).
Rove has said he never mentioned her name to the TIME reporter, so this is a tenuous link at most.
The Story in summary