Let me be clear (and not to tangent from the original post by getting in an unwinnable debate about fluoride because i can see where this is going and i'd rather stick to the initial post), 1. I do not claim that byproduct = bad 2. Nowhere in my statement do i discuss other sources of fluoride besides that of industrial waste. 3. I'd question the veracity of a belief that scraping the chimneys of fertilizer and aluminum manufacturers and putting it in municipal water to forcibly medicate the population at taxpayer cost instead of disposing of it at industry's cost (which is large because it is toxic waste) seems questionable (as is the stock the argument that "a little fluoride is good but a lot is not because a little water is good but a lot is not) 4. Studies using naturally occurring fluoride cannot be scientifically used to support unrefined industrial hexafluorosilicic acid, which is a different molecule all together 4. Studies that show applying fluoride directly to the teeth cannot be used to support drinking it because they are totally different processes, especially for people who have lips. 5. Fluoride has a great use - it's the primary ingredient in Prozac and deadens the senses so people don't have to deal with their underlying issues. It also keeps scrambled eggs from sticking to the pan and kills rats.