From my e-newsletter with ADSA, I refer you to a good article on the challenges that some "more humane" bird facilities face during this time of year. I think it's really important for people to fully understand the consequences of their ideology, and how much it sometimes just doesn't make sense.
Speaking of not making sense, the driving force behind cheap food is talking about making healthier food cheaper. It just seems like a high percentage of the people who shop Wal-mart do it because they can get more food for less money, thus eating more. Making your food healthier won't change the fact that people come there, buy too much and subsequently eat too much. Changing consumer action will make a bigger difference than the quality of your food. If you asked me, Wal-mart could do with focusing on fresher produce first.