A.I. Begins Ushering In an Age of Killer Robots

In a field on the outskirts of Kyiv, the founders of Vyriy, a Ukrainian drone company, were recently at work on a weapon of the future.To demonstrate it, Oleksii Babenko, 25, Vyriy’s chief executive, hopped on his motorcycle and rode down a dirt path. Behind him, a drone followed, as a colleague tracked the movements from a briefcase-size computer.Until recently, a human would have piloted the quadcopter. No…