This is an interesting opinion piece from the New York Times by Jeff McMahan. He suggests that not only should human beings refrain from eating meat -- but he also proposes that we have the moral imperative to keep carnivorous animals from hunting, killing and eating one another. Such activity causes suffering for the hunted animal. He suggests we could accomplish this by either genetically altering them so that they consume vegetable matter instead, or we cause the controlled extinction of said animals. I'm not sure if this applies to insects and aquatic life as well. This seems to be quite an extreme view -- and for that reason I'm not sure that he literally believes this, or if this is an intellectual exercise that questions the justification of a vegan or vegetarian lifestyle. http://opinionator.blogs.nytimes.com/2010/09/19/the-meat-eaters/?ref=opinion I think that this propostion is entirely insane, but it does raise a question in my mind that I'd to like to pose to vegetarian and vegans. Are you bothered by predation in the natural world? If not, why is this behavior not ok for human beings but fine for animals?