On Wednesday 21 December, the European Commission confirmed that it will not be imposing visas on American citizens wishing to travel in the Schengen zone and that it was therefore refusing to impose tit-for-tat measures on the United States over non-reciprocity in the matter of visas, even though it is required to do so under European law. The US continues to require Bulgarian, Romanian, Polish, Cypriot and Croatian nationals to hold visas and the Commission was theoretically supposed to...