According to The Koran: "[9.11] But if they repent and keep up prayer and pay the poor-rate, they are your brethren in faith; and We make the communications clear for a people who know." So the information in my earlier post about this issue is wrong. The Koran doesn't mention the events of 9/11 at all. This verse is about forgiving idolaters if they repent.
That's chain spam for you, I guess.