A tricky task. It will not be easy for historians of the future to decide what to make of this European Council on 16 September 2010. Those who rely on official documents and archives will write that heads of state and government focused on the EU's foreign policy and also European economic governance to a slight extent, because not one word of the official conclusions document mentions the Roma or immigration problems. Historians, however, who rely on accounts in the media and eye-witness...