Anarchists take part during a march in commemoration of the 45th anniversary of the Halconazo, in Mexico...
Anarchists take part during a march in commemoration of the 45th anniversary of the Halconazo, when a Mexican paramilitary unit called the Halcones (Falcons) killed an unknown number of students during a demonstration in 1971, in Mexico City, Mexico, June 10, 2016. REUTERS/Edgard Garrido