Stanley Pignal. “EU faces threat to migration principle.” Financial Times. September 28th, 2010: “the economic downturn and ensuing rise in unemployment have raised questions on whether unregulated free movement within Europe’s borders is the undisputed benefit it once was. ‘Free movement is a bit like the euro,’ warns Hugo Brady, a fellow at the Centre for European Reform, a think-tank, recalling the single currency’s recent troubles. ‘It’s a thing the EU created and then forgot about, thinking it would never be problematic thereafter.'”