Our work in Britain suggests that radicalization is driven by an ideology which claims that Muslims around the world are being oppressed and - and this is the key bit of the argument - which then legitimizes violence in their supposed defense.

Women tend to break the network of friends they make, but it is a habit that men have learned. It is an approach to life that involves planning almost without thinking about it. And men sustain this. I came from a northern grammar school. I had a good education, but I didn't have a good network.

We owe it to the victims of the suicide bombers who struck London on 7 July 2005 to find out how the attacks happened and to learn the lessons that will spare lives in the future.

To a considerable extent we are faced by a technology arms race with terrorists. The communications revolution has made it easier for terrorist groups to reach out to vulnerable individuals with their violent extremist ideology and propaganda. It has also facilitated fundraising, recruitment and training.

It is really important for women to look up and see other women being successful. When I was in that position, all I wanted to do was blend in and be one of the guys.

Well, one thing's very clear, that terrorism isn't just a threat which is external to Western countries. It's not simply a foreign menace that comes from overseas to strike our cities. It can and it does, as we now know, come from within our own countries and from inside our own populations.

The BBC's television, radio and online services remain an important part of British culture and the fact the BBC continues to thrive amongst audiences at home and abroad is testament to a professional and dedicated management team who are committed to providing a quality public service.