After three nights of violence, Sacramento city leaders imposed a curfew and called in the California National Guard on Monday. It was an unfortunate but necessary step to prevent further violence and destruction. Mayor Darrell Steinberg hesitated to take such drastic measures. He said law enforcement officials feared that a curfew might only escalate things. But the vandals and thieves who tore up Sacramento this weekend forced their hands. Over the weekend, people smashed windows, set fires and stole merchandise. They assaulted and robbed two Sacramento Bee journalists. They did everything in their power to overshadow the real reason for...