Former Maoist revolutionary and current European Commission President José Manuel Barroso (declared this week that a federal Europe ruled by the European Union from Brussels would be a “reality within a few years,” sparking furious criticism from Europeans and renewed calls in Britain and other countries to withdraw from the increasingly power-hungry EU. Whether the formerly sovereign member states use the controversial single euro currency or not, Barroso announced, all of the 27 EU governments will be ensnared in the dubious project. While acknowledging that today the idea of a federal regime ruling over Europe may seem like “political science...