This link goes to Mercola's site but the video isn't Mercola.
Pretty shocking when you consider the other meat threads here.
The Meat You Should Never, Ever Eat...
I think the answer is to get your meat from a source you trust. There are organic farmers growing grassraised animals who supply direct.
Joel Salatin has plenty of You Tube videos explaining how you can raise, kill, butcher animals in ways that are humanitarian and safe not only for humans but for the environment.