Congress

As I said, poorly marked roads and bad weather are indeed current problems, but as I also noted, they are not impossible problems. In fact, given that sensor tech capabilities are superior in almost all respects to human perception capabilities, robot cars will soon be much better at knowing where the road is in all sorts of conditions that humans have great difficulty with. The thing about tech is it keeps improving, and it does so at a very rapid rate. Humans evolve very slowly. But this is a silly argument. You think Ford GM Mercedes Benz BMW Google Apple Tesla Toyota Nissan etc are idiots tossing hundreds of millions a year away on robotics? They are all in a race now to see who can deploy full autonomous vehicles first.