People hold up signs reading, from right, Refugees Welcome, (in Italian) Protection and Safe Channels for refugees, People before Borders and S.O.S. Europe during a barefoot march in support of migrants, in Rome, Friday, Sept. 11, 2015. Hundreds of thousands of asylum-seekers have entered the European Union this year, thousands more arrive daily, and number-crunchers and analysts are battling to understand what it all means. (AP Photo/Gregorio Borgia)