The Rohingya genocide was just one of many sectarian flashpoints in Rakhine state; now a slick separatist insurgency is getting the better of Myanmar’s army. America is floundering in its bid to win the 5G mobile-technology race; we ask what options it has. And denying locked-down Sri Lankans booze has driven them to home-brewing. For full access to print, digital and audio editions of The Economist, subscribe here www.economist.com/radiooffer