So just to recap: humans need a driving licence but self-driving cars do not even require a human? Is that even legal? Is anyone surprised this accident happened? And do the government just accept it as a necessary statistic for the development of the technology? Self driving cars on roads with no pedestrians or other human manned vehicles might work if they were all programmed to to recognise each other and avoid each other and co-ordinated from a central control point like trains. How much of this kind of testing has been done without human drivers? Soooo many questions, not much actual research before they are trying to implement these on public roads though. Self driving cars is a bit like asking cows to have road safety awareness. They are not quite there yet.