my grandfather was a biochemist and in the 50s when my dad was little he was very outraged by the flouridation starting. It does have a history of experimental use by the Nazis. They experimented with all kinds of things back then. It's sadly how we got a lot of data about human beings. What most americans don't realize is that the russians and germans and many other europeans were (are?) very serious about mind control and Inexplicable paranormal type things. When your country is thousands of years old, you tend to take the unexplained a bit more seriously.
My family has been screaming for 3 generations now to take the flouride out of the water. While there is conclusive data that topical application of flouride can prevent cavaties by hardening teeth, there is much less data on ingesting it in small amounts over a long period of time. This lack of good data can make it seem like a global-warming argument. But when I build a house I am having no flouride from a well or, if on town water, am buying a good filter that can strip out the flouride.
Anyway, there are a couple of important facts you should know about flouride.
If compaines didn't make govt pay for flouride, they would have to pay more to dispose of it since it is a dangerous carcinogen, that is a biproduct of the Aluminum manufacturing process. For you conspiracy theorists out there Alan Greenspan has/had serious ties to the Alcoa Aluminum company back in the old, pre-EPA days.
Over-flouridation is a problem for kids. Baby forumla can come from dried milk that had flouridated water from the milk source (cows?). Then adding flouridated water to make formula increases the dosage for a baby who is already overdosed due to size. This combined with flouride in (nearly) all toothpastes, can cause dental flourosis in children, making their bones brittle and teeth rotten. Many dentists have been protesting this for years. This is no way to medicate people, each person should be given an individual dosage appropriate to their age and weight.
One more anecdote: I don't mean to spread FUD so this is just what I know. I attended school in Potsdam, NY in St Lawrence country that has the highest per-capita cancer rate in all of NY, and they don't know why, the only common link is the water supply. To battle this, they have a state-of-the-art cancer treatment facility at the Potsdam hospital. I didn't have to be told this as the tap water smelled like a swimming pool and was chlorinated to the max, I lugged water from home in VT for drinking for 4 years of school. 30 Miles north of Potsdam, there is the town of Massena that used to be a big Alcoa Aluminium factory town. Upstate NY is full of factory towns. They closed down a while ago and left an abundance of flouride in the water, and a highway is dedicated to the aluminum workers, "The aluminum workers memorial highway." I have a friend professor who lives up there who has a well and tests his water every year. He informed me that there was a very real local problem with kids's getting broken bones due to too much flouride.
As far as mind control, the data on this is very hard to come by. Experiments need to be conducted and data needs to be collected. I have heard rumours that baby chicks will jump around out of your hand, but ones fed flouride will sit docile. I'm curious to know, but there are already enough reasons to take flouride out of our water.
I use Tom's natural toothpaste which has no flouride. I reccomend you find a non-flouridated toothpaste for your kids. If you want them to have fewer cavities, don't let them drink lots of soda or heap sugar on their corn flakes.