Well, we're not equipped with radar and they are. Also, when self-driving cars become reasonably common, there is no excuse whatsoever to allow idiots to continue driving. Things like DUI should lead to a lifetime loss of privilege to operate a manual vehicle, and the penalty for violating should be reckless endangerment, not "driving with a suspended license".
I want to see how self driving cars handle South American / Latin traffic... if it can handle itself through Buenos Aires, Lima, or Rome, it's a better driver than I am (and probably passes the Turing test :) )
I'm not sure vehicle's AI would gracefully handle a case of meeting some idiot full-speed cruising through a red light.