Understandable attitudes. It is justified, understandable and even wise that Jean-Claude Junker, the president of the Eurogroup, is continuing vigourously to reject the hypothesis that Greece could leave the eurozone and that he is using heated, even disagreeable, terms towards those who do not share his view. This is his duty for a number of reasons, amongst them the fact that the Greek exit would not be possible until early July and that it would in any case have to be painstakingly...