Self-driving cars are getting into accidents in California

The riskiest thing about self-driving vehicles may turn out to be human drivers.
Four of the nearly 50 self-driving cars undergoing tests on California roads since September, when the state began issuing permits to auto companies, have crashed.
But the cars, three owned by Google and one by Delphi, were in collisions caused by human error.
http://www.latimes.com/business/la-fi-self-driving-accidents-20150512-story.html#navtype=outfit&page=1
Article courtesy of The Los Angeles Times by Jerry Hirsch and Joseph Serna