More importantly, those tweets purport that the other car (driven by a human) failed to yield at the intersection and hit Uber's car. If this proves to be true

More importantly, those tweets purport that the other car (driven by a human) failed to yield at the intersection and hit Uber's car. If this proves to be true, the only question is whether a human driver in the Uber car's position would have noticed and braked to avoid entering the intersection. There's mention of a third car ... we'll see what the traffic cameras say!