The Guardian view on EU border controls after Paris: more cooperation, not less

The terror attacks in Paris a week ago have stunned Europe. They have now also transformed the politics of European border controls. The security of European borders is in no sense an unfamiliar political issue. On the contrary, more than three quarters of a million refugees and migrants this yearhave generated familiar and fresh challenges for every state whose borders they have crossed and fuelled a populist reaction across many parts of the EU, not least France itself. It’s not clear that even a miniscule proportion of these refugees has any terrorist connection of any kind. But an outrage like the Paris attacks has the potential, especially in economically tough times, to ignite some tinder-dry popular concerns about Muslim newcomers.