You know what I've begun to think about these guys who blow themselves up? I think they have each done something in their lives that makes them feel so guilty, so unacceptable to God, that this is their only chance of going to paradise.
That is a valid idea!
I have heard very same things happening in Israel and those who blow themselves and others up have been told that if they don't do the job, their true face will be exposed to public. (Most of these buddies were criminals or from low level of the society)