Read other letters about this article
The "proliferation" of CAFO's in the last 20 years, and the rise in pollution from CAFO's, is almost totally due to the growth of large scale confined hog operations.
Also, I think that "factory farm" has become an extremely muddled concept. It is used in different ways by different writers. Most writers, including Ms. Little, do not make it clear what their usage of "factory farm" means. It has gotten to where I no longer think that this is a useful concept at all.