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We meet the Chinese property tycoon and multi-millionaire who, along with his then-wife, once moved in the highest echelons of power in Beijing.But the couple fell foul of the Chinese government during Xi Jinping’s inexorable rise to power and in 2017 Desmond’s ex-wife was abducted – he says by the Chinese state. She vanished for two years and even now is restricted in her movements, although she’s never been charged with any crime. Mr Shum now lives in the UK, from where he gave us his extraordinary account of business life at the highest level in China. And he tells us why he thinks the current Chinese economy is rotten to the core. Presenter: Ed Butler(Image: Desmond Shum. Credit: Desmond Shum)

The former British colony in South America boasts the world’s fastest-growing economy at the moment – it expanded by 62 per cent last year, according to the International Monetary Fund.The reason is oil. Since 2015, US oil major Exxon and its partners have made a series of massive discoveries in Guyanese waters, catapulting the country into the world’s top 20 in terms of reserves.That’s bringing billions of dollars into the economy but also challenges: how can Guyana avoid the ‘resource curse’ - the mismanagement and corruption that have afflicted other commodity-rich nations? How can it exploit the oil bonanza with a population of less than a million people? And has the oil come too late anyway – just as the world move away from fossil fuels?We talk to the country’s president Irfaan Ali.Presenter and producer: Gideon Long(Image: President Irfaan Ali. Credit: Keon Blades/ Office of the President Guyana)

Science is all around us but a lot of it can be difficult to understand.Gareth Mitchell speaks to people building careers around helping make science understandable to the general public.We speak to a YouTuber making music about science, a science festival organiser and a science communication consultant who works with different businesses to make science more engaging and easy to access. Producer: Hannah Mullane Presenter: Gareth Mitchell(Image: Ellie Mackay at work. Credit: Ellie Mackay)