Your Driverless Cab Is Spying on You

The story has a happy(ish) ending: The gun was shooting water-filled Orbeez, not bullets. But the incident drew attention to Waymo’s surveillance system. The cars are equipped with automated tech that can flag the presence of a firearm inside, the company said.

The outsides of self-driving cars are studded with cameras, which help them “see” the world around them. (Most also use other sensors, including radar and lidar.) Less appreciated are the cameras inside the vehicles, which companies say are…