9/11 was a tragedy but... How on earth could these terrorists know how to fly Boeing 76/57s? To my knowledge, no African/Middle Eastern airlines use them.
I try to remain neutral on this subject but... I think we all know what 9/11 really was...
It's amazing how versatile this aircraft is. The Mi-17 really is one of the best utility helicopters out there; just look at its outstanding performance, especially for its price.