After decades of ignoring the research about the dangers and hailing water fluoridation as one of the 10 greatest health achievements of the 20th Century (CDC), the government is calling for a reduction in the amount of fluoride it adds to public water supplies, citing its negative effect on teeth (dental fluorosis). For the first time since 1962, the standard for fluoride will be lowered from 1.2 to 0.7 milligrams per liter.
