Students from the National Polytechnic Institute (IPN) demonstrate in Mexico City September 30, 2014. Thousands of students poured onto the streets of Mexico City on Tuesday to march against changes to the syllabus and regulations at IPN, one of Mexico's biggest universities, that protesters argue will lower education standards.     REUTERS/Edgard Garrido (MEXICO - Tags: CIVIL UNREST EDUCATION POLITICS) - GM1EAA10NAB01
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