This is important, even neglects to mention the pollution these "farms" have on the ground water. There's a case in Missouri where one of these Chinese hog farms had allowed cracks to form in the concrete and 10s of thousands of gallons of the pig effluent to flow into and pollute the ground water and they ended up with a fine equivalent to a single days worth of profits.

Buy your pork from local producer-absorbed the hogs seeing the sun, you won't regret it as soon as you eat that sweet sweet fat