Reply #1: Scientists at EPA who regulate fluoride actually held a strike at EPA building to protest

[philb]

the Gov'ts policy of failing to eliminate fluoride from water supplies. The fluoride used in town water supplies is toxic waste from Florida phosphate mines, which has high levels of toxic metals like lead, arsenic, etc. It represented the biggest toxic waste problem in Florida by a lot, but they were smart and through lobbying the right people(like ADA) and spreading a litte money around, they bamboozled cities all over the country to take their toxic waste off their hands and put it in the water supplies.

Other countries weren't so easily fooled though a few places were.
Fluoride is very toxic and similar to lead in toxicity. Fluoride as used is documented to cause a lot of adverse health effects, which is why EPA and NAS have been trying to educate the public about this issue.
Fluoride also has synergistic effects with metals like mercury and lead, which most have exposures to, and the synergistic effects of the fluorida with the toxic metals is much higher.