BROADCASTS.com

The killing of the country\u2019s top nuclear scientist comes at a tricky time: violent retribution may threaten hoped-for diplomacy with the incoming American administration. An artificial-intelligence breakthrough may transform protein science, with implications for everything from industrial processes to tackling disease. And why Europe\u2019s lighter-touch, second round of lockdowns have been so effective.

For full access to print, digital and audio editions of The Economist, subscribe here www.economist.com/intelligenceoffer