An important gesture. Is it likely that European citizens will rally to defend the euro against efforts made by international financial operators to bring it down? Obviously not. Valéry Giscard d'Estaing is advocating a sudden burst of “people power” (see this column yesterday) but the majority of citizens have, for the time being, other concerns than a battle over principles. Most of them are worried about their living conditions, their jobs, their own futures or whatever it might be,...