Demonstrators march to protest the disappearance of 43 students from the Isidro Burgos rural teachers college, in Mexico City, on October 22, 2014. Tens of thousands marched in Mexico City's main avenue demanding the return of the missing students. The Mexican government says it still does not know what happened to the young people after they were rounded up by local police in Iguala, a town in southern Mexico, and allegedly handed over to gunmen from a drug cartel on September 26, even though authorities have arrested 50 people allegedly involved, including police officers and alleged members of the Guerreros Unidos cartel.(AP Photo/Marco Ugarte)
Protesters march during a demonstration in Mexico City on October 8, 2014, demanding justice in the case of the 43 students that went missing in Iguala on September 26, after a clash with local police. Thousands of people protested around the country on Wednesday amid fears the students were executed by a gang working with crooked police.(Ronaldo Schemidt/AFP/Getty Images)
A police helicopter flies overhead as the Guerrero state capital building burns after it was set on fire by protesting college students in Chilpancingo, Mexico, on October 13, 2014. Hundreds of protesting teachers and students demanding answers about the 43 students who went missing on September 26 during a confrontation with police, clashed with police at the local congress and outside the state government palace. (AP Photo/Alejandrino Gonzalez)
Teachers clash with riot police in front of the Guerrero state congress building in Chilpancingo, Mexico, on October 13, 2014. (AP Photo/Alejandrino Gonzalez)
People attend a protest against the disappearance of 43 students from the Isidro Burgos rural teachers college, at the Zocalo, Mexico City's main square, on October 22, 2014. Tens of thousands marched in Mexico City's main avenue demanding the return of the missing students. (AP Photo/Eduardo Verdugo)
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http://www.theatlantic.com/infocus/2014/10/mexicos-missing-43/100838/