SPIELFELD, AUSTRIA-- Asylum-seekers from Syria and Iraq waiting to cross the border into Austria from Slovenia on February 20, 2016. Austria implemented new procedures limiting the number of asylum-seekers allowed each day, creating a domino-effect down the Balkan route and creating backups in Greece and Serbia. (Photo by Jodi Hilton/NurPhoto) (Photo by NurPhoto/NurPhoto via Getty Images)