text: Then, we haven't even talked about how these car respond to emergence vehicles that are driving fast down the street with lights and sirens. Then we don't even know how long it takes for the human to regain control of the car. Do they have to pull the car over, or hit a switch, if so is there a delay such as 10 seconds or so. A known fact is that more police officerss die every year from driving lights and siren down the street on their way to something and die because of someone not paying attention. So if humans can accidently hit each other and sometimes kill each other then why would we want driverless cars doing the same thing.