NO TAV is a movement of the population of the Val di Susa against the construction of railway line of high-speed train (TAV) Turin - Lyon, in the construction of the so-called Corridor 5 that should connect across eastern Europe (beginning from Kiev), with the major cities of western Europe (including Turin, Marseille, Barcelona to Lisbon).
Similar movements of dispute arose in the early nineties between Florence, Bologna and Rome. As a result of the disputes in the Val di Susa, all movements NO TAV have obtained a national media dialog to expose their own arguments. (Wikipedia)
More information about No Tav: Ambientevalsusa