Leaving out the facts. Criticism, even if it is harsh, is always useful. Commentators who believe a rapid budget recovery in Greece is impossible, that the country does not have a permanent place in the eurozone, or who are sceptical about the very existence of the single currency (see this column yesterday) are right to express their criticism and doubts. They are, however, washing their hands of the euro a little too easily and forgetting what it has contributed to the European...