Planned new centers around the Mediterranean to handle migrants will be no silver bullet solution to the European Union's immigration challenge, says a U.N. agency of the idea it will be asked to implement.
Irregular migration across the sea has been dramatically reduced, and only about 45,000 people have made it to Europe that way this year. But the hot-button issue is driving the EU's political agenda.
Last week, EU states agreed to tighten their external borders and spend more in the Middle East and North Africa to bring down the number of arrivals.