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.

When my parents were growing up the world's population was under three billion. During my children's lifetime, it is likely to exceed nine billion. You don't need to be an expert to realise that sustainable development is going to become the greatest challenge we face this century

I am not sure that we would always want 16-year-olds to do all the things they can do. I am afraid that I do not agree with the hon. Gentleman on the voting age. I think that it should remain as it is.

The Iraq Survey Group has already found massive evidence of a huge system of clandestine laboratories.

Genetic modification has many different areas, for example in medicine, and Britain is at the leading edge of this new technology. I don't know, but people tell me, it could indeed by the leading science of the 21st century. All I say to people is: 'Just keep an open mind and let us proceed according to genuine scientific evidence.'

The moment you stigmatize a whole group of people - for example, Muslims - then, obviously, you make the decent, law-abiding Muslims feel as if they're under threat in some way or that their legitimacy, as members or citizens of society, is brought into question.

I cannot think of any circumstances in which a government can go to war without the support of parliament.