California Greenlights Testing Driverless Cars

California has given the green light for companies to start testing truly driverless cars — that is autonomous vehicles without a front passenger who can take over during an emergency. The California Department of Motor Vehicles says safety is its top priority, but consumer advocates worry that systems simply aren’t ready for driverless vehicles. Meanwhile other analysts warn that while these vehicles offer hope for reducing traffic, they alone are not state’s transportation woes.