This blog is sleeping at the moment but couldn't not link to this post...The Lancet, has officially classified fluoride as a neurotoxin, in the same category as arsenic, lead and mercury. Surely this is one more nail in the idea that we can continue adding it to water supplies....
See article here: http://www.healthy-holistic-living.com/fluoride-officially-classified-neurotoxin-worlds-prestigious-medical-journal.html