I don't doubt that we have developed the technology to enable a car to successfully go autonomously from A to B avoiding accidents, however driving often involves incredibly subtle decision making...

Will the AI notice the pot hole - and its severity?

Can it tell the difference between a dog/cat/child/deer.

How would it proceed through larger puddles - cautiously? Or without risk.

In a world where all cars are autonomous it becomes easier to manage, in the meantime the technology and its governance must be of the highest quality. I do however commend the US for leading the way.