My humble opinion, as one who has been very closely affected by this, is that you may find some evidence among the ranks of a certain Afg**n airline named like a European space rocket (protecting Danny's site, I'll not actually name it).
The UAL 767 seemed to be flying at an extremely high speed, and that takes some skill. You cannot reproduce the change in pitch and feel forces on a 75/76 on a desktop, or in a Cessna. Out of trim, the 757 in particular is a load.
I'm livid. I feel like it's time to deliver some spare pleutonium, but I'll let the Government take it's course. Just because some other peoples' cultures are basically disfunctional, why vent your fury on innocents?