South Africa’s former President, Jacob Zuma failed to appear at a corruption inquiry this week - an inquiry he himself set up when he was in power. But now he has been called to testify, he has accused the judge of carrying out a personal vendetta against him. The case has split the country’s ruling party, the African National Congress. In the eyes of many the former President will always be seen as the legendary liberation hero. Andrew Harding looks at why it’s proving so difficult to hold certain politicians to account in South Africa. We visit Wuhan in China, where, just over a year ago, a whistleblower - Li Wenliang - first drew the world's attention to the severity of the Coronavirus outbreak. A team of international scientists from the World Health Organisation have just returned from their month long visit to the city to try to identify the origins of the virus. China correspondent, Stephen McDonnell followed the motorcade of scientists on their tour and found information about what they learned was hard to come by. Tokyo's Olympics has faced a number of hurdles: last year the Games were postponed for the first time in their 124-year history due to the pandemic; Japan's Olympic chief was recently forced to stand down for making sexist comments and now there is local resistance to pressing ahead with the Games this Summer due to concerns about continued outbreaks finds Rupert Wingfield-Hayes. We visit the Uffizi gallery in Florence for an almost private view of some of the great works of Renaissance Art. Between lockdowns and restrictions, the museum re-opened briefly in January and Julia Buckley managed to steal a visit, without the tourists. Presenter: Kate Adie Producer: Serena Tarling