Deepen rather than backtrack. I don't know whether Mario Monti, when he was preparing his report on the situation and the relaunch of the single market, expected so many misgivings to be expressed (see this column yesterday). Europeans give the impression that they have forgotten to what extent the removal of the borders has changed their lives. Younger people have not had to experience controls at every border, customs duties on anything brought into their country or sent abroad, or having...