Some words are as accurate as they are disturbing. Only a few days ago, on 29 March, Stéphane Foucart opened his "Planète" column in Le Monde with the following sentence: "Not a month goes past without fearing the worst for the European project". He goes on to list, one after the other, the sovereign debt crisis, the rise of populism, the "threat" of a possible "Brexit", the restoration of borders and erection of barbed wire fences in the Schengen area. The remainder of his piece is then...