Intro

A trove of once-secret documents is proving an embarrassment to both America and its allies, and a danger to Ukraine’s planned counter-offensive. The tech industry is shedding workers at a striking pace; we ask where all those laid-off experts are going. And more evidence that suggests pet ownership reduces childhood allergies.

For full access to print, digital and audio editions of The Economist, try a free 30-day digital subscription by going to www.economist.com/intelligenceoffer