More than any other institution, the American industrial animal farm offers a nightmarish glimpse of what capitalism can look like in the absence of moral or regulatory constraint. Here in these places life itself is redefined–as protein production–and with it suffering. That venerable word becomes “stress,” an economic problem in search of a cost-effective solution, like tail-docking or beak-clipping or, in the industry’s latest plan, by simply engineering the “stress gene” out of pigs and chickens. “Our own worst nightmare” such a place may well be; it is also real life for the billions of animals unlucky enough to have been born beneath these grim steel roofs, into the brief, pitiless life of a “production unit” in the days before the suffering gene was found.