A pilgrimage that is sure to become a covid-19 hotspot is a sign of how much the country’s government is losing legitimacy to its clergymen and tribal leaders. Social-media giants’ efforts to scrub violent content from their platforms simultaneously hobbles efforts to bring war criminals to justice. And why south-west England may soon be reviving its long-lost mining industry. For full access to print, digital and audio editions of The Economist, subscribe here www.economist.com/intelligenceoffer