Extremists are cropping up at protests and expanding their reach online. They see the pandemic as proof of their worldview, and as an opportunity to spread their messages. After systematically ignoring mental-health concerns for decades, China’s authorities are at last tackling the issue—somewhat. And lockdowns prove that Britain is a nation of gardeners. For full access to print, digital and audio editions of The Economist, subscribe here www.economist.com/radiooffer