There are literally thousands of sites. As I was told in Iraq, information is coming in the entire time, but it is only now that the Iraq survey group has been put together that a dedicated team of people, which includes former UN inspectors, scientists and experts, will be able to go in and do the job properly.

But I am an optimist about Britain; and the difference between an optimist and a pessimist is not that the optimist believes the world is wonderful and the pessimist believes it's beset by challenges; the difference is the pessimist believes we will be defeated by them; the optimist thinks the challenges can be overcome.

There are millions of young children being educated to a very narrow-minded view of religion. And it's out of that education of large numbers of young people that you then get this extremism.

If you're interested in politics and you're not following it, then it's a little bizarre.

I think what happened with 9/11 is that people sort of felt that it came from nowhere. Whereas I think now we understand the roots are very deep. I say it's like revolutionary Communism, something that is going to have to be knocked out over a very long period of time. This strain of extremism continues to be very strong, whether it's in Afghanistan, or Somalia or Yemen, or any of these places.

We can debate this or that aspect of climate change, but the reality is that most people now accept our climate is indeed subject to change as a result of greenhouse gas emissions.

The thing always is to go to where people really are and what they're really feeling about life.