Given that the NSA will likely have a backdoor into any automated driving system, is this really a technology you'd like to see become all pervasive? "We don't like this guy's ideology - ok, let's arrange for him to have an 'accident'".
That's a much more obvious way of doing away with someone though. Having a car experience a 'software failure' and driving you into a wall at 80MPH, is less so.
Minority Report comes to mind. And, I, Robot (I think). That's just a few examples of stories in which futuristic cars are conveniently control-able by the police when necessary.
