It isn't effective? So far in the past 15 years the terrorists have spent at most a few million dollars on their attacks, and the west has spent trillions. Th

It isn't effective? So far in the past 15 years the terrorists have spent at most a few million dollars on their attacks, and the west has spent trillions. The amount of economic damage to the west has been profound, and yet our leaders would be happy to spend 20% of GDP indefinitely on ineffective projects attempting to thwart terrorism. So yes, terrorism works very well and often terrorist groups transition into respectable and moderate political parties.