Brussels, 22/08/2006 (Agence Europe) - A trade-off between enlargement and integration? An analysis of trust between EU nationalities is the theme of a recent “discussion paper” by Jan Delhey, a young researcher at the Wissenschafszentrum für Sozialforschung de Berlin (WZB). This theme has been tackled on several occasions in Eurobarometer by the European Commission but not since 1997, although the issue since the most recent enlargement of the European Union has become a burning issue...