Headline is Scare tactic.
Fluoridation opponents (FOs) are not a "fringe group".  They are a world wide informed group who have researched and investigate peer reviewed studies on the effect of non-natural man made fluoride by-products (hazardous waste) from fertilizer and aluminum production that is added to domestic water supplies under the guise of providing a health benefit. 

Obtain an MSDS (material safety data sheet) for the product and read the hazards and personal protective equipment required to handle the product to understand that this product is hazardous to your health.  

It all comes down to parts per million.  The fluoride proponents want you to believe that the amount of hazardous waste they want you to consume won't harm you.  What they refuse to acknowledge is that this product is cumulative and stays in the body and causes damage over time.  

They also refuse to tell you that your soda, coffee, sport drinks and tea add to your daily intake (dose).  They Lie.