I dont know when these ppl will stop this povery-as-the-reason fantasy. May be they are influenced by the old movies. Even the ppl involved in 9/11 and the more recent kafeel incident in UK are definitely not 'poor' and 'uneducated' people.
The actual reason is that all these people who are getting into the jihadi variety are actually trying to 'serve' their religion and consider it their duty. Now you can say that it is not mentioned like that in Islam and it is a peaceful religion but the fact is that there are many people (it will be said that this is a minority) who are preaching the so-called radical version and there are many more willing to believe that and become martyrs.
When the radical form is offered as the path to become a 'better' muslim (it may be a wrong interpretation of the holy book but it is a sad reality), you can see that these people are taking this path to become better muslims! and to serve their ummah!
secular apologists in the media will still continue their fantasies even though the facts point out otherwise. but the truth is clear and out there.
all this will stop only when this notion of superiority of one religion above all (well, every religion can feel that way but they dont have to kill infidels for that) and the extent people can go (or can be 'influenced') to establish that stops. It can happen only when they realize how foolish they were.
The govt meanwhile needs to strengthen its security setup, gather intelligence and guard itself.
