They do. It's a big read too.

This reminds me of talks with my dentist. Me: What about mercury fillings, could they really harm you, or is that just a bunch of BS. Dentist: That's crazy. There is nothing wrong with mercury fillings. Nothing. Me: Would you use them for your children? Dentist: What! Never, composites only. The science is really not out yet on that.

An interesting talk for sure. :-)