Tonight on the show "Nature" on PBS, they explained the relationship between humans and cows throughout history.  It was quite interesting, I thought.  Unfortunately, I was doing something else while watching, but I got most of it.  I think what did it for me was the section where they explained where meat used to come from and where it comes from now.  They explained  the damage that a corn diet does to cows and then the antibiotic issue, and then the slaughtering process.  I felt that they stopped just short of saying that this way of procuring meat for food is not sustainable.  They also discussed the methane issue, but I missed most of that.

Anyone else catch this?