Many were shocked when armed groups heeded a call for a global ceasefire; given a squabble at the UN it would now be shocking if those pockets of peace continue to hold. We examine a century-old technique as a possible treatment for covid-19. And a family feud involving Britain’s most-reclusive octogenarians heads to court. For full access to print, digital and audio editions of The Economist, subscribe here www.economist.com/radiooffer

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