MEXICO CITY, MEXICO - OCTOBER 29: One of the relative of 43 missing students holds a picture of a student during the conference at the Miguel Agustin Pro Juarez Human Rights Center, after a meeting with President Enrique Pena Nieto at the Official Home of Los Pinos after a month over the missing of 43 students in Iguala, Guerrero, October 29, 2014 in Mexico City, Mexico. (Phot by Manuel Velasquez/Anadolu Agency/Getty Images)
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