President Trump has been talking a lot lately about MS-13, a street gang that started in California and spread to Central America. But what is the real story behind the gang? Latino USA takes a deep dive into MS-13, from the gang’s origins in Los Angeles, to the economic motor that powers them in Central America, to a string of brutal murders in Long Island, New York. Plus, the other reason why the administration is talking about MS-13 these days: politics.