Corn-Fed Beef and Sustainability

Inhumane Feed Lot Beef vs Humane Grass Fed Beef
http://www.youtube.com/watch?v=zUDCh7nSUEQ&feature=related

Grass Fed Beef
http://www.youtube.com/watch?v=z-rM9LYZ5oA&NR=1

Corn-Fed Beef and Sustainability
http://www.youtube.com/watch?v=2EH2zjaXfCM&feature=related