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The story of uncovering a plot to bring down aircraft flying from the UK to the US
Leading investigations into the US's financial giants before resigning over a sex scandal
Paul Kagame led Rwanda out of genocide, but he still faces international criticism. Why?
The President of Ecuador talks about the failure of US policy in South America.
How does an activist turned politician reconcile his beliefs with the realities of office?
Businessman Mo Ibrahim talks about the transformation of Africa through mobile phones
Ultimate Washington insider, John Podesta, gives his take on President Obama's progress
Giving up playing for England after suffering debilitating depression while on tour
Iranian cleric Mohsen Kadivar talks about the role of the clergy in Iran's politics.
Daniel Fried on the difficulties encountered in closing down Guantanamo Bay