What we want to see is the development of human rights and greater democracy, not just because it is our system but because we think that's the best way that economic and political development go hand in hand.

Our new world rests on order. The danger is disorder. And in today's world, it can now spread like contagion.

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

How do we deal with not just the acts of violence, but the extremist ideology that lies behind them? Because though the numbers of fanatics that go and join and kill for a group like ISIS are measured in tens of thousands, those that support the wider ideology, I'm afraid, you measure in tens of millions or more.

We, therefore, here in Britain stand shoulder to shoulder with our American friends in this hour of tragedy, and we, like them, will not rest until this evil is driven from our world.

I learnt a lot in government, and I've learnt a lot since leaving government. The kind of journey of being in government is that you start at your most popular and least capable, and you end at your most capable and least popular.

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.