The decision to remove thimerosal specifically from childhood vaccines was a precautionary decision to remove the mercury exposure even without full evidence of harm, just as a way preventing additional mercury exposure. I would point to that as a benefit.
I'm out of my league here, though, so I don't want to go on into the other components. I shouldn't go where I don't belong.
You've raised the issue of the messaging about breast milk and contaminants in breast milk. One of the things that have come up as well around these issues is that it's so important to maintain the message that breastfeeding is still the most important and the best way to feed a child long term—absolutely. You have to maintain those messages together. It's very important when you're talking about contaminants in breast milk.