Few politicians are as ambitious about dismantling the tech behemoths as Elizabeth Warren, one of America’s Democratic presidential contenders. What she is proposing, though, would be neither easy nor quick. We dive into the myriad threats faced by corals, and by the millions of people whose livelihoods depend on them. And a new book considers the likes of Genghis Khan as manager material.For full access to print, digital and audio editions of The Economist, subscribe here www.economist.com/radiooffer For information regarding your data privacy, visit acast.com/privacy