African leaders' Ukraine peace mission

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A frosty reception in Kyiv, for the African leaders who've come there in peace. A delegation from the African Union will head to Moscow this weekend, hoping to broker a ceasefire. But Presedent Zelensky says it's not the time for talks. We examine whether their role could yet be crucial. Also on the programme: The whistleblower responsible for the Pentagon Papers leak during the Vietnam War, Daniel Ellsberg, has died aged 92. We reflect on his life. And Spotify, one of the world's biggest streaming platforms, has ended its lucrative deal with the Duchess of Sussex after only one series. We look at the business of podcasting.