I don't understand. What's your commentary? Several Islamic terrorist organizations have released communiques stating just what you quoted from the neoconservative. The general message from Islamic extremist organizations is that governments should be Islamic, and all non-Muslims as defined by them cannot be converted, but must be completely eradicated so that they can create their religious state. They often see the US as a key, if not the sole perpetrator of secular evil. Sometimes they're motivated by a desire to speed the coming of a new messiah and age, the achievement of which is connected to their terrorist acts. I might have fudged some finer details, but it is a fact that they are absolutely intolerant of the existence of dissenting viewpoints.

As for the efficacy of torture, it can work. The French were able to end a spree of urban terrorism in the city of Algiers during 1957 by resorting to suffocating blanket security measures and systematic torture in order to obtain information. This alienated the citizens of Algiers and cast doubt in the minds of French citizens on their role in the country. Islamic extremists are more unrelenting in their objectives (Algerian terrorists sought only independence), so trying to wipe them out militarily isn't feasible, and neither is appeasing them (they want all of us dead).

There's a good book called Inside Terrorism by a man named Bruce Hoffmann. It's informative and unbiased in its discussion of the history, current trends, and solutions to terrorism.