Honda just took a big step toward getting its self-driving car technology on to American roads. The automaker has quietly received the approval needed to test its autonomous cars on California streets, letting these robotic rides venture beyond a closed-off facility in Concord. The company is relatively late to the party -- Audi, Lexus and other brands have had the state's A-OK for a while. Still, we're not going to knock Honda when this will eventually lead to more variety in hands-off vehicles.