I wonder if this is legal. I mean, if one of these cars went haywire and mowed down a bunch of pedestrians before the "driver" was able to take control, I reckon Google would have some splainin to do. With autonomous vehicles coming closer and closer to a reality, it's somewhat alarming that there appears to be no legal body attempting to define some guidelines on this subject. At the rate our government works, we'll have fully functioning, marketable autonomous vehicles long before it's legal to use them.