Three-and-a-half-thousand hungry Alsatians wolf down platters of charcuterie and periodically burst into noisy chorus....the latest iteration of a feasting phenomenon that is sweeping provincial France. The Alsace town of Colmar – famous for its half-timbered medieval centre – was the scene last weekend of one of the banquets géants – huge banquets whose popularity in the country has suddenly become a hot political issue. Run by a company called Le Canon Français (The French Cannon), the banquets are massively attended – €81 (£70) buying you four courses of local gastronomy, all the wine you can drink, and several hours of...