A Mara Salvatrucha gang member attends a press conference where leaders of the Mara Salvatrucha (MS-13) and Barrio 18 declared the city of Quezaltepeque a peace zone or "Sanctuary City" for gang related violence, on January 31, 2013 at the Quezaltepeque prison, 25 kms west of San Salvador. Gang leaders and members have been involved in a gang truce to reduce crime in El Salvador.     AFP PHOTO/ Juan CARLOS        (Photo credit should read Juan CARLOS/AFP/Getty Images)