Fluoride dumbs people down, and is known to contribute to Alzheimer's. Keeping people stupid is useful to those who use them. The Nazis added it to concentration camp water. To avoid tooth decay? Fluoride only benefits teeth as long as they're in contact with it. What it does to your body from that point down is mostly harmful. Better to fund clinics where school kids can (voluntarily) get it painted on their teeth than to forcibly "medicate" the whole of society. Fluoride is a scam.