Nazis turned people into soap . Simon-Baron Cohen's outstanding book The Science of Evil begins with an unsettling account of the Nazi's ruthless efficiency, turning humans into slave laborers and, in some cases, into a variety of household products. The question, Cohen explains, is how humans can turn other humans into objects – to completely strip ourselves of empathy toward their suffering and view them as products, as bags of meat. Bags of meat. When I watch this short silent clip from the documentary Samsara , I sense the same sort of erosion of empathy. Don't worry, the clip is not graphic, at least not in the sense of being violent or bloody: I watch this and see an unsettling reason why, if we don't simply start going vegetarian entirely, we should be reducing our dependence on animal products and – when we do consume them – buying local, grass-fed and organic meats and animal products. They don't show the slaughter in this video, and it's no