Your Next Gig: Map the Streets For Self-Driving Cars

I went for a drive in San Francisco's Mission District last month. It was late morning, and there wasn't much traffic. As I wended my way through the side streets, I avoided a double-parked armored car and steered around construction sites. Though it might have seemed like an aimless outing, my brief sortie was anything but. Every centimeter I drove, every object I encountered, and even the double line I crossed to avoid the Brinks truck was being recorded by a device affixed across the top edge of the windshield, just above the rearview mirror.