Well, one of the issues is that someone more or less has to be held accountable. And that someone pretty much has to be the manufacturer. No one is going to hand over full control to a vehicle and accept the responsibility if that vehicle commits vehicular manslaughter because "software isn't perfect."

It's actually an interesting legal situation because, other than maybe drug side effects, there aren't a whole lot of consumer products which, properly used and maintained, sometimes randomly kill people and we're OK with that because sometimes stuff just happens.