Members of the human rights group Madres de Plaza de Mayo march during a demonstration in Buenos Aires...
Nora Cortinaz (C), the leader of the human rights group Madres de Plaza de Mayo (Mothers of the Disappeared), and other members of the organization march during a demonstration in Buenos Aires, Argentina September 18, 2017, against the disappearances of Julio Lopez, who disappeared 11 years ago before testifying against dictatorship-era crimes, and Santiago Maldonado, who disappeared on August 1, 2017 after taking part in a protest in Patagonia. REUTERS/Marcos Brindicci