Media tycoon Lai arrested under HK security law

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Hong Kong tycoon Jimmy Lai was arrested over allegations of collusion with foreign forces. BBC business reporter Andrew Wood is based there, and discusses Mr Lai's businesses and his impact on Hong Kong. And we get wider context from Allan Zeman, a property developer who is an economic adviser to the city's leader Carrie Lam, and has known Jimmy Lai for decades. Also in the programme, a thousand tonnes of oil have spilled out of a Japanese-owned ship which ran aground near Mauritius 15 days ago. Vassen Kauppay-Muthoo is an oceanologist in Mauritius who has spent the past few days on the island's beaches, and explains the implications. Plus the BBC's Elizabeth Hotson has been talking to some very wealthy people to find out whether there is something about the inner psyche that makes us natural savers or spenders. (Picture: Jimmy Lai being arrested. Picture credit: EPA.)