I don't know if it has been proven that the other terrorists didn't know they were on a suicide mission. I remember reading something to that effect but it is still too early in the investigation to be certain of what took place. Also, I wouldn't infer that hijacking 4 airplanes was some small operation. It was a huge undertaking that required one heck of a lot of support.
You are dead wrong. The hijacking of the four planes was a relatively simple operation. The idea that it was a massive and complicated plot is misleading. Judging by her ability to squeeze a two week three city vacaion into just six days, I'd say that my wife could have planned the whole operation in three days flat. You had 30 motivated fanatics with funding and for all practical purposed, as much time as they needed. All they had to do was keep a low profile and execute the plan step by step. It wasn't rocket science.
Richard W.