U.S. intelligence officials knew within 24 hours of the assault on the U.S. Consulate in Libya that it was a terrorist attack and suspected Al Qaeda-tied elements were involved, sources told Fox News -- though it took the administration a week to acknowledge it.

http://www.foxnews.com/politics/2012/09/27/us-officials-knew-libya-attack-was-terrorism-within-24-hours-sources-confirm/