Rollout of driverless cabs in select U.S. cities raises safety questions

Rollout of driverless cabs in select U.S. cities raises safety questions

If you call a taxi in some U.S. cities, the car that picks you up might not have a driver. Self-driving "robo-cabs" are generating a lot of interest and controversy, and major technical questions remain. Aarian Marshall, a staff writer for WIRED who covers transportation, joins Ali Rogin to discuss the state of autonomous vehicles on the road.