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In this episode of Frost over the World, Sir David looks back on some of the highlights of the last six months, including an interview with Ban Ki-moon, the UN secretary-general, about the war in Gaza, Hamid Karzai, the Afghan president, about Afghanistan's troubled relations with the new US administration, and Danny Boyle, the director of the Oscar-winning film Slumdog Millionaire.

Also, in this episode: Jacob Zuma in the run-up to the South African elections, Daniel Ortega, the Nicaraguan president, Reverend Jesse Jackson on what it means to have an African-American president, Gordon Brown, the British prime minister, on the financial crisis, FW De Klerk, the former South African president, on the country's progress since the end of Apartheid, and Morgan Tsvangirai on Zimbabwe's coalition government.

This episode of Frost over the World airs from Friday, July 03, 2009.