An excellent overview by Jason Burke, a journalist and author with The Guardian:http://www.theguardian.com/world/201...mistakes-9-11?

The full title:
There is no silver bullet': Isis, al-Qaida and the myths of terrorism (Sub-title)The west’s response to 9/11 was the catastrophic ‘war on terror’. Have we learned from our mistakes with al-Qaida, or is history repeating itself with Isis?
He ends with:
To be afraid of terrorism is normal; to be concerned is natural. But it is better to be so in measure and in reason, not in panicked ignorance, and thus win one immediate and important victory.
The author does not provide what to do now.