The psychology of these people is very strange.
Remember all that weird discussion in the Bin Laden tape about dreams and such.
I have a hunch that the date 9/11,
not just because of its emergency call connotations,
had some important mystical significance to these people.
Maybe someone had a 'prophetic' dream in which those numbers occured,
maybe it is involved in some mystical initiation ceremony, maybe...
I don't think this is far out,
from what I know about such people,
(and I know a little)
I think it is a strong possibility.
that the date 09/11/2001 refers to some verse in the Koran.
I don't think the numbers on the letters,
so clearly and prominently printed,
refer just to the date of the attack.
They have some other significance
known only to these twisted mystics.
I feel certain about that,
I cannot prove it,
but I know it in my bones.