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A man holds a poster welcoming refugees during a rally in support of migrants and refugees as part of the European Day of Action in Athens on September 12, 2015. Tens of thousands of Europeans rallied urging solidarity with the huge numbers of refugees entering the continent, as Hungary's populist premier said leaders were 'in a dream world' about the dangers posed by the influx. AFP PHOTO / LOUISA GOULIAMAKI (Photo credit should read LOUISA GOULIAMAKI/AFP/Getty Images)

A man holds a poster welcoming refugees during a rally in support of migrants and refugees as part of the European Day of Action in Athens on September 12, 2015. Tens of thousands of Europeans rallied urging solidarity with the huge numbers of refugees entering the continent, as Hungary's populist premier said leaders were 'in a dream world' about the dangers posed by the influx. AFP PHOTO / LOUISA GOULIAMAKI        (Photo credit should read LOUISA GOULIAMAKI/AFP/Getty Images)