Ukrainians woke to the sound of sirens. Volleys of cruise missiles, artillery, widespread reports of explosions: a large-scale invasion appears to be under way. Our correspondent in Kyiv reports on the mood and on what is known so far. And we examine the sharp rise in carjackings in America, asking why so many young people end up behind the wheel. For full access to print, digital and audio editions of The Economist, subscribe here www.economist.com/intelligenceoffer