Essential California: Scandals, racial tensions claim San Francisco's police chief

The Expo Line, which opens today, will get you from downtown L.A. to Santa Monica in 50 minutes. That's the same as the old Red Car system took more than a half-century ago. Some experts say speeding up Metro's rail lines is crucial to the goal of getting more commuters out of their cars and using mass transit. San Francisco's police chief stepped down under pressure amid growing controversies over allegations of corruption and racially biased behavior on the part of the department. There was another fatal shooting that generated debate hours earlier.