Chicago aldermen, in a vote harshly denounced by Norfolk-based People for the Ethical Treatment of Animals, have reversed their two-year-long ban on restaurants’ serving pƒ¢té and other forms of foie gras, the goose live delicacy that typically requires force-feeding, in a practice known as gavage, the animals with a steel tube shoved down their throats. (One of the more powerful voices opposing such practices is a book called Eternal Treblinka, which compares some of the more extreme abuses in the factory farm system to the Holocaust.)