Borders are closing; suggestions to stay home are becoming mandates. We examine how the national responses to covid-19 have varied, and how they may be converging. In America, Joe Biden cemented his lead in the race for Democrats’ presidential contender. But the bigger question is how the pandemic will affect elections. And Japan’s government fights to protect the country’s famed Wagyu beef. For full access to print, digital and audio editions of The Economist, subscribe here www.economist.com/radiooffer