As El Salvador's state of emergency turns four years old, families warn of the toll of the mass arrests on children. Rubidia Hernandez and her six-year-old granddaughter hug as they sit in their home on the outskirts of Nahuizalco, El Salvador [Euan Wallace/Al Jazeera] In a quiet church courtyard in El Rosario, El Salvador, 16-year-old Sarita sits beside her grandmother. From her neck hangs a medallion, its golden face flashing against the starchy white fabric of her school uniform. “It’s a...