SAN SALVADOR, EL SALVADOR - NOVEMBER 2004: Members of the Mara Salvatrucha gang inside the Quazaltepeque prison. (Photo by Alvaro Ybarra Zavala/Edit by Getty Images)
SAN SALVADOR, EL SALVADOR - NOVEMBER 2004: Members of the Mara Salvatrucha gang inside the Quazaltepeque prison. (Photo by Alvaro Ybarra Zavala/Edit by Getty Images)