WASHINGTON – Some 103 suspected members of a violent criminal street gang that has been linked to al-Qaida and other terrorist groups have been arrested in seven U.S. cities, the government announced today. The target of the massive sting operation was Mara Salvatruchas gang – also known as MS-13 – whose members have been known to behead victims and attack with grenades and machetes. The raids, which began in January, are part of the first nationwide crackdown on the Central America-based gang that boasts members throughout the United States, Mexico and Canada. The group specializes in cross-border drug-dealing, arms-running and...