Sweden's Nobel Medical Institute recommended against fluoridation and the process was banned. The Netherlands outlawed the practice in 1976. France decided against it after consulting with its Pasteur Institute. The evidence over the last 11 years indicates a causal link between fluoride and cancer, genetic damage, neurological impairment, bone pathology and lower IQ in children. The use of fluoride-containing insecticides in grape crops is a factor in these high levels.
Cooking can greatly increase a food's fluoride content.
Also, keep in mind that toxic fluoride is an ingredient in pharmaceuticals, aerosols, insecticides and pesticides. You poison everyone a little bit rather than poison a few people a lot. This way, people don't know what's going on. Any public health official who criticizes the practice of fluoridation is at risk of losing his job. Even National Toxicology Program researchers downgraded cancers caused by fluoridation after being coerced by superiors to change their findings.