Migration crisis: Is the EU at 'grave' risk?

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French Prime Minister Manuel Valls has said the migrant crisis is putting the EU at risk and that Europe simply cannot take in all the refugees who want to come here. “Europe has forgotten that it needs borders,” he told the BBC's chief international correspondent Lyse Doucet at the World Economic Forum in Davos. “It’s Europe that could die… If Europe cannot protect its own borders it’s the very idea of Europe that will be thrown into doubt," said Mr Valls. (Image: Migrant men Credit: Reuters)