In the immediate aftermath of 9-11 I would have agreed with Jaded-One's belief that povery was to blame for muslim terrorism.
But it came out that Bin Laden is worth hundreds of millions of dollars, and that the 9-11 attackers were all from fairly well-to-do families, not the desperate lot I had expected.
THe other thing worth noting is that poverty is as bad in south Asia, latin ameriaca, and in our own backyard, among aboriginal canadians (and americans and australians etc...). Yet none of these groups is involved in this sort of murderous activity.
So poverty is a very poor predictor of who will become a terrorist. One might consider looking to what the terrorists themselves say. They seem to want all "foreign" presence out of their countries (and note that this extends to non-Muslim natives of their own countries), want to wage holy war against the crusaders (e.g. the christian, western world), etc...
While I don't doubt that support for these muderers would diminish among Muslims if there was democracy, education, and less poverty in these countries, (remember that the terrorists smartly also provide social services to the poor) -- it is another thing to say that we brought this upon ourselves by being relatively well-off. At the same time the western nations should remember that successful empires treat their subjects well.
While all this may be true, sometimes you just have to say "WHAT THEY DID IS ABSOLUTELY WRONG AND IT DOESN'T MATTER HOW BAD OFF THE PERPETRATORS ARE, WE MUST WAGE WAR AGAINST THEM."
That the Spanish were so quick to turn and run doesn't make them safe. If you believe it wil make them safe you had better contact your MP and push to get our boys out of Afghanistan.