What Did Kerry Know, and When Did He Know It?

From Blogs for Bush:

Where did the forgeries come from? They didn't appear out of thin air; someone made them. Reports indicate that CBS had them for at least a couple weeks before they aired their story on 60 Minutes II (Motto: Twice the BS of Regular CBS Broadcasts). One pundit claims to have been been told by an un-named DNC staffer that an opposition researcher passed to the documents to the Kerry campaign which then turned them over to CBS (which would make sense as CBS has proven itself the most reliably anti-Bush in its reporting; if you were part of the Kerry campaign, CBS would be the place to leak oppo research to).