Recent days have shown an outpouring of humanity in Europe. Angela Merkel has announced that Germany will open its doors to more than half a million refugees and urged other states to follow suit; in Hungary, activists screened cartoons for children who have fled war and destruction; in Britain, thousands of people are working together to take much-needed supplies to the Calais refugee camp. The public mood is one of overwhelming sympathy: #refugeeswelcome trends on social media, petitions call on governments to take action and ordinary people pledge to take refugees into their own homes. However briefly, even the most
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