I found this great blog about rBST. Thought I would share it.
http://scienceofmom.com/2012/03/19/truth-from-the-dairy-aisle-is-milk-from-cows-receiving-rbst-safe-for-my-family/
http://scienceofmom.com/2012/03/19/truth-from-the-dairy-aisle-is-milk-from-cows-receiving-rbst-safe-for-my-family/