Bitcoin falls below $30,000 on China crypto-crackdown

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The cryptocurrency Bitcoin has fallen below $30,000 for the first time in five months, after China told its banks to stop supporting digital currency transactions. Winston Ma is the author of The Digital War: How China's Tech Power Shapes the Future of AI, Blockchain and Cyberspace, and brings us analysis. Also in the programme, whilst you might expect that the surge in home deliveries over the past 18 months would be a boost to cardboard firms supplying online retailers, Miles Roberts, chief executive of cardboard firm DS Smith, tells us why profits at the business are down. Plus, the BBC's Ed Butler asks whether medicine is about to be transformed by digitisation and artificial intelligence. (Picture: Bitcoin cryptocurrency coins. Picture credit: Getty)