More than a year after George Floyd was murdered by a Minneapolis policeman, the city votes on an overhaul of its force. We examine America’s shifting debate over police reform. Cryptocurrencies have taken off in Cuba; but the communist authorities want control. And light may be shed on the mystery of the reproductive habits—and extraordinary migration—of eels. For full access to print, digital and audio editions of The Economist, subscribe here www.economist.com/intelligenceoffer See acast.com/privacy for privacy and opt-out information.