Yet what is surprising 10 years on is the relative failure of violent Islamism to make a more lasting political impact. Few of us would have predicted this failure at the time.
Al Qaeda began with the idea of purging Saudi Arabia of “infidels”; it then came up with a complex political model of a caliphate. What we are seeing instead — and I stress that my comments are personal — is a resurgence of moderate Islam and moderate Islamist parties. These groups are now apparently arguing for the very democratic values and individual rights that Al Qaeda was so opposed to. This can be seen in what is happening today in Tunisia, in Egypt, in the sort of things that Turkish Prime Minister Recep Tayyip Erdogan is saying and doing.
Dearlove's position requires that one view failure as a total failure to get everything one wants. If that were the case then any negotiated settlement between any parties would be "failure" for all parties involved. No one looks at a negotiated settlement like that.
Furthermore; Dearlove's position also requires us to ignore history of Islam as it spread throughout regions such as North Africa, etc. Muslims have never been stupid. Contrary to what is generally said by some Muslims, The Prophet had no problem with the use of violence and nor did his followers. However; violence was not the preferred tactic of Muslims in their expansion but it was also never "off the table" and that has always been the case. If they were able to get a foothold somewhere by other means they did so. Knowing this we should look at the actual stated issues that Al-Qaeda claims to have.
Al-Qaeda had a deep hatred of secular governments that acted as puppets of the US and Israel. They had a deep hatred of governments that they saw as oppressing the rights of "righteous" Muslims. Yes, they had ideas of re-establishing Caliphates, but these other issues were just as important.
What has happened since 9-11? Among many things we have seen a very aggressive push by the Palestinians to receive recognition in the UN over the usual objections of the US and Israel. We have seen the "Arab Street" previously easily brushed aside, topple US aligned leadership in a number of countries. We have seen so called "moderate" Islamists make it into government whereas before everything was done to keep them out. We see the Muslim Brotherhood, previously repressed taking seats in new governments. In other words, the Arab world in general has become that much more assertive towards the US than any time prior to 9-11 or at the oil embargo.
At the same time, as Bin Laden said, the US has been shown to not really care about The Law(tm) as they claim to be. the US has been shown and documented using torture or outsourcing it. Stuff that has been happening for a long time but was not visible to the US or world population until after 9-11. The US and The West(tm) has been shown to be in cahoots with various dictators as evidenced by it's unwillingness to condemn Mubarak or the leadership of Bahrain.
Indeed just like the violence in various cities in the US made space for and pushed the powers that be to address the "more moderate" elements of the civil rights movement, so to did the violence of Al-Qaeda create a space where the relatively moderate Islamist groups had to be dealt with. This is almost always how violence works in such conflicts. In politics the most radical person is labelled the "extremist", the less radical that person is, the less room the people who are moderate have to move. But when that radical person is way out there the middle ground opens up quite a bit.
In Africa Muslims got their place by way of compromise. Why not let them live peacefully over there, rather than risk constant armed conflict? As the old Yoruba saying goes (paraphrased): Woe to the man who disturbs the praying Muslim.
So no, Al- Qaeda failed at setting up a caliphate. But yes, they did get some of what they wanted. Sounds like a "compromise" to me.