Difficulties and obstacles to revising Treaty. The symptoms of a shift towards a two-speed Europe are being borne out in many different ways. In some instances, it is considered as being unavoidable and formulas and modalities are already being discussed. It is true that a large part of the European Parliament, in principle, is opposed to it (see our publication yesterday on the debate focusing on next week's summit perspectives). Different analyses and predictions proliferate. Here are a...