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 mean, you can agree or disagree with Iraq or Afghanistan, but by the way, now the great campaigning cause out there is the absence of intervention in Syria. And then in Libya, it's partial intervention. And that doesn't really explain why some countries that have literally nothing to do with the interventions in the Middle East end up getting targeted.

We have a situation where we are rich really as a world overall, and yet we have the capacity to destroy ourselves, either through nuclear weapons or through environmental degradation, and we allow the life chances of hundreds of millions of people to be destroyed because we haven't found the will to tackle it

Surely we have the wit and will to develop economically without despoiling the very environment we depend upon

I'm one of these people that, once you have had your election and you have elected your candidate, let's see what actually happens.

September 11 was, and remains, above all an immense human tragedy. But September 11 also posed a momentous and deliberate challenge not just to America but to the world at large. The target of the terrorists was not only New York and Washington but the very values of freedom, tolerance and decency which underpin our way of life.

I say to the Taliban: surrender the terrorists; or surrender power. It's your choice.