Assignment Jacob Zuma: The Investigation

Jacob Zuma is one of the most powerful men in South Africa. He controls the ruling African National Congress and is poised to replace President Thabo Mbeki as head of state. But Jacob Zuma has a problem. Prosecutors say he's corrupt and hope to bring him to trial in August. Mr Zuma says the charges are political, designed to keep him from power. For Assignment Martin Plaut travelled to South Africa to investigate.