Ahead of the state visit to Britain by Chinese Premier Xi Jinping, the BBC's China Editor Carrie Gracie retraces his remarkable career from living in a cave to becoming the most powerful Chinese leader in decades.
To mark the first anniversary of the attack on the twin towers in New York, a retrospective of the BBC's coverage as events unfolded on the tragic day.
The series is mainly focused on social issues and current affairs stories around the world. International current affairs documentaries, replacing "Correspondent".
