This article says we did indeed share information:
After Israel shared its intelligence with the Bush administration in recent months, which included satellite imagery, the United States provided Israel with some confirmation of the original information before Israel went ahead with the night air raid on September 6, the Post reported.
The quality of the Israeli intelligence, the nature of North Korea's assistance and the seriousness of Syria's atomic activities remained uncertain, the Post wrote.
Given that we talked early, indicating our knowledge, it stands to reason that North Korea commented early because they had reason to know. Probably because their people or material was struck on September 6th. Their outrage was a bloody give away, eh?