Self-driving cars now legal in California

California is the latest state to allow testing of Google's self-driving cars on the roads, though only with a human passenger along as a safety measure, CNN reports.
Gov. Edmund "Jerry" Brown signed the autonomous-vehicles bill into law Tuesday afternoon alongside Google co-founder Sergey Brin and State Sen.
Brin hopes that self-driving cars will be able to drive on public streets in five years or less.
"Anybody who first gets in the car and finds the car is driving will be a little skittish. But they'll get over it." said Brown when asked if the California Highway Patrol was on board with the plan.
The cars use a combination of technologies, including radar sensors on the front, video cameras aimed at the surrounding area, various other sensors and artificial-intelligence software that helps steer. Google is the most visible company working on these types of vehicles, but similar projects are under way at other organizations, including Caltech.
So far, the cars have have racked up more than 300,000 driving miles, and 50,000 of those miles were without any intervention from the human drivers, Google says.