Everything old becomes new again:
An influential medical journal published a study Monday that links fluoride consumption during pregnancy with lower childhood IQs—a finding that could undermine decades of public-health messaging, fire up conspiracy theorists, and alarm mothers-to-be.
The research was expected to be so controversial that JAMA Pediatrics included an editor’s note saying the decision to publish it was not easy and that it was subjected to “additional scrutiny.”
Go here to read the rest. I am beginning to think the ancient Greeks were on to something with their Eternal Return cyclical view of history since old issues seem to come back with stubborn regularity under new guises.