A protester stands next to a security fence set by riot policemen during a protest demanding justice in the case of the students of Ayotzinapa, in Mexico City on November 26, 2015. Parents and relatives of the victims began an indefinite concentration outside of Los Pinos presidential residence to demand the government the investigation on the disappearance of students. AFP PHOTO/ Yuri CORTEZ / AFP / YURI CORTEZ (Photo credit should read YURI CORTEZ/AFP/Getty Images)
