I've read them all... . I , too, was wondering when somebody would mention it... only in the book, it was Japanese terrorists that flew a plane into the Capitol building, if I remember correctly. Small difference.
I doubt the shaky sheiks have enough time left over from training, and riding camels, to read Tom Clancy. All that oil from the AK-47's and RPG-7's would get all over the book's pages and make 'em hard to read anyway.