The people who were actually on board those planes could have been "bought off", if you will, in a NY second if they thought others in their wider group felt it was the wrong thing to do. They did it because it was accepted and expected of them. No different then American soldiers who do what is expected of them, and by and large won't do what is not accepted or expected.
I agree with this completely. It takes a lot of fanatical conviction to commit suicide for any cause. When people come to realize that such fanatical martyrdom accomplishes very little, they will cease to participate.
In Palestine, the main impulse to continue with suicide bombings seems to be the videos that are sold and distributed everywhere, and of course, the sense of utter despair of the Palestinian young men who see no future in continuing to be unemployed refugees that are rejected even as street sweepers and garbage haulers.
This stuff about "they want our soul" is a bit silly.
How would they ever know that they had taken possession of a soul?