I think everyone's had their pound of flesh and now it's time to move on.

I feel like everyone else in this country today. I am utterly devastated.

I think, there is a possibility - I would say it's more than that - that we will come to a view of foreign policy going forward that learns from the past but doesn't get captured by it.

Can we be sure that terrorism and WMD will join together? If we are wrong, we will have destroyed a threat that, at its least is responsible for inhuman carnage and suffering. That is something I am confident history will forgive. But if our critics are wrong and we do not act, then we will have hesitated in face of this menace, when we should have given leadership. That is something history will not forgive.

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.

I've never ruled out the possibility of going back into public service.

I think everyone's had their pound of flesh and now it's time to move on.