I just lost my blintzes!
Israel actually toed the line and ponied up intel before the 9/11 fiasco that could have been used to contain the damage: 1) temporarily suspend all flights until the passengers are vetted properly; 2) evacuate the top 70 or 80 floors (at LEAST) of towers 1 and 2; put the air defense net on high alert instead of "Standing down because of training operations in the area . . ."
No one group is "responsible" and yet it appears that obstruction of justice is a contributing factor.
And BTW, Israel doesn't necessarily like the USA all that much, but they're not obvious enough to go around screaming, "Marg bar Amrika . . ."