(FILES) This file photo taken on March 16, 2016 shows UNHCR's Goodwill Ambassador Angelina Jolie Pitt (C) visiting refugees during her visit to the port of Piraeus. UN special envoy Angelina Jolie Pitt urged the international community on May 16, 2016 to respond to Europe's worst refugee crisis since World War II with generosity and not the "politics of fear". / AFP PHOTO / PANAGIOTIS TZAMAROSPANAGIOTIS TZAMAROS/AFP/Getty Images