Non-essential businesses are opening; schools soon will be, too. The country’s fortunes are down to a mix of science-minded leadership, functional federalism and a bit of luck. Saudi Arabia has halted its brutal air campaign in Yemen, ostensibly for humanitarian reasons; there is more to it than that. And a look at the wave of female avengers in drama. For full access to print, digital and audio editions of The Economist, subscribe here www.economist.com/radiooffer