Spectators hold posters of some of the 43 missing students of Ayotzinapa College Raul Isidro Burgos, during a cultural concert to mark the 23-month anniversary of their disappearance in Mexico City, ... more 
Spectators hold posters of some of the 43 missing students of Ayotzinapa College Raul Isidro Burgos, during a cultural concert to mark the 23-month anniversary of their disappearance in Mexico City, Mexico August 26, 2016. REUTERS/Carlos Jasso less 
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Reuters | Photo By CARLOS JASSO / REUTERS
Fri, Aug 26, 2016 8:23 PM EDT