Which brings us—reluctantly, necessarily—to the American factory farm, the place where all such distinctions promptly turn to dust. It’s not easy to draw lines between pain and suffering in a modern egg or hog operation. These are places where the subtleties of moral philosophy and animal cognition mean less than nothing, indeed where everything we’ve learned about animals at least since Darwin has been simply…put aside. To visit a modern Concentrated Animal Feeding Operation (CAFO) is to enter a world that for all its technological sophistication is still designed on seventeenth-century
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