I am sorry to be leaving the BBC. I have enjoyed a fascinating seven years at the corporation and am particularly proud to have played a small part in the development of the BBC's Global News services, BBC World Service and BBC World.

As the BBC approaches the final phase of decisions about its future, it will be important for those involved to be established in post and ready to take responsibility for implementation of the outcome.

I am sorry to be leaving the BBC. I have enjoyed a fascinating seven years at the corporation and am particularly proud to have played a small part in the development of the BBC's Global News services, BBC World Service and BBC World.

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.

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.

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.

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.