It's also interesting what the company says in return: http://www.smithfieldfoods.com/RollingStone/
Remember the original swine flu? Not the 2009 H1N1 human outbreak, the ones before that killing vast numbers of pigs in industrial farms.
The material really was disgusting: workers beating animals to death, throwing transportation boxes (thus, breaking the animals' bones) etc.
I'm not a hardliner-PETA-animal-rights-activist, but I think there is good reason to not naively believe those statements of companies like Smithfield.
Either way it doesn't make it alright.