For the first time, fear really stalks the Rue de la Loi in Brussels, headquarters of the European Commission. It is visceral. We know this because of the increasingly hysterical register of the messages in which the commissioners are sending French and Dutch voters preparing (in their referenda on 29 May and 1 June respectively) to vote down the treaty establishing a federal constitution. If you do so, the European Union nomenklatura is saying, you will bring to Europe economic disaster, a return to internecine war or (most tastelessly and least forgivably) another Holocaust. It is ridiculous hyperbole and therefore all the more demanding of explanation. How did it come to this?