Jan. 1: Across the border from San Diego, drug cartels have killed 400 people in Tijuana, Mexico, since September, and much of the violence is orchestrated by one mysterious figure. NBC’s George ... more 
Jan. 1: Across the border from San Diego, drug cartels have killed 400 people in Tijuana, Mexico, since September, and much of the violence is orchestrated by one mysterious figure. NBC’s George Lewis reports. less 
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Sun, Sep 9, 2012 3:22 AM EDT