We keep hearing that the last decade of war, where we pour in gazillions to build up Iraq and Afghanistan even as our own economy sputters, has weakened Al Qaeda.

Christopher Hitchens's book God is Not Great: How Religion Poisons Everything is a lengthy and detailed description of what happens when religious people behave badly.

Excellent Resource. Lots of information about how many, many warning signs about the dangers of terrorism by Islamic extremists were ignored before the 911 attack. And, in light of the continuing efforts by Islamic extremists to commit acts of terrorism-- just as relevant today.