A demonstrator looks from her tentduring a sit-in protest near the Los Pinos presidential residence after taking part in a march to mark the 14-month anniversary of the disappearance of the students from Ayotzinapa College Raul Isidro Burgos, in Mexico City, Mexico November 27, 2015. Hundreds of activists marched on Thursday in Mexico City to demand justice for 43 students who disappeared over a year ago in the southwestern state of Guerrero. On the tent, a sign reads "We are missing 43". REUTERS/Henry Romero