US officials later will admit American agents had infiltrated al-Qaeda cells in the US, though how many agents and how long they had been in al-Qaeda remains a mystery. On this day, electronic intercepts connected to these undercover agents hear messages such as, “Watch the news” and “Tomorrow will be a great day for us.” When asked why these messages did not lead to boosted security or warnings the next day, officials will refer to them as “needles in a haystack.” What other leads may have come from this prior to this day will not be revealed. [USA Today, 6/4/2002] At least until February 2002, the official story will be that the “CIA failed to penetrate al-Qaeda with a single agent.” [ABC News, 2/18/2002]