LOS ANGELES - Leaders of the notorious Mexican Mafia were charged Wednesday with running a conspiracy to control drug trafficking and carry out violence ordered from inside Los Angeles County jails. The U.S. attorney's office charged 83 people tied to racketeering conspiracies that alleged they ran drugs and carried out violent assaults and even murders. "These cases have delivered a major blow to the Mexican Mafia and leaders of many of the street gangs under the control of the organization," U.S. Attorney Nick Hanna said. "By taking out the gang members who control the jails, and by disrupting their communications...