Facing pressure from both China and America on allowing Huawei into its next-generation network, Britain opted to fully appease neither—and that will test relationships in the post-Brexit era. Collecting tax in Africa is a fairly fraught business, but it’s too much potential revenue to ignore. And the sociology that suggests the ideal size for a team. For full access to print, digital and audio editions of The Economist, subscribe here www.economist.com/radiooffer