After years of retirement from political life, Nelson Mandela, the world's most admired statesman, allows cameras into his private world.

The dramatic stories of North Koreans who are risking everything, including torture and execution, to escape the repression and hunger of their homeland and reach safety in the South.

Investigative documentary. Willard Foxton, whose father committed suicide after falling for an elaborate con, heads to the US to investigate the fraud and its fallout.

This World examines the shocking phenomenon of Romanian Gypsy children across Europe forced to beg and steal, and the racism and discrimination suffered by the Romani people.

Investigative documentary series. The story of Neda Agha Soltan, an Iranian woman who was shot in Tehran in June 2009, and has been claimed as a martyr for Iran's protest movement.

International investigative documentary series. Justin Rowlatt reports on whether President Obama is on target to keep his climate change promises.

Joseph Stalin is back. Or is he? Reporter John Sweeney travels more than 5000 miles through the old Soviet Union, from Stalin's birthplace in Georgia to a former labour camp in Russia, to find out if one of the twentieth century's most notorious mass-murderers is really being rehabilitated.