Visiting a villa built by Lorenzo d Medici outside Pisa, David Gilmour fell into conversation about the unification of Italy with a distinguished former minister: '",You know, Davide,", he said in a low conspiratorial voice, as if uttering a heresy, ",Garibaldi did Italy a great disservice. If he had not invaded Sicily and Naples, we in the north would have the richest and most civilized state in Europe.", After looking cautiously round the room he added in an even lower voice, ",Of course to t ...