[lawyamike]

Yes. Consider that at least one of the hijackers studied urban planning as an undergraduate before attending flight school in the United States. Again, that appears to indicate that leaders of these cells had plotted and members of these cells had prepared for more than six years.

The Washington Post reports that a few of the hijackers lived with their families -- wives and children -- in suburban parts of the United States. Their children played with other children in the neighborhood. At least one of the hijackers' families hosted a pizza party for local children a week before the incidents, with his wife explaining that it was an Arab custom to plan a celebration upon departing, so as to impart good memories on those left behind.

It is chilling to consider that some of these sleepers still reside in our neighborhoods, that their children still play with our own.