It is well to remember than UsamabinLaden himself has said that two million American children must die to atone for imagined transgressions against Muslims.
To understand why Jim Woolsey and other terrorism experts call Wahhabism as it spreads through the Islamic diaspora "kindling for UsamaBin Laden's match, " it is important to know the content of Saudi textbooks.
The obligation to issue the Da'wa call to Islam before striking is why UsamabinLaden issued not just one, but two separate declarations of war in 1996 and 1998 (which are widely mischaracterized to this day as fatwas).