(Disclaimer: This transcript is auto-generated and may contain mistakes.)

We have been fluoridating our water in Tennessee for more than 50 years, but never before has there been more talk than that fluoridating our water might be a bad idea and a health risk. Well, there's growing controversy about something many of us swallow every day. We're asking tough questions about a chemical some say can hurt you and your family and why the state forces you to drink it. Everything we can do to help prevent cavities on children I think is very important. Absolutely, fluoride is safe, it's effective. Science is on the side of fluoride being safe and effective. There is no controversy about this in the scientific community. If it's such a simple issue, how is it that it's still going on after half a century? I remember it being debatable. Yeah, it was 30 years ago. And it's continuously debated. Public health officials knew then what they know now. Would we have fluoride? Would it be added to our drinking water? Well, today a coalition of scientists, dentists, and doctors are taking action to stop fluoridation until it is proven safe. We've been doing it 50 years, but just because we've been doing something 50 years doesn't necessarily mean that it's right. We consume it every day with the reassurance from our health authorities that it's doing us good. The truth is fluoride is a poison and adding it to our drinking water is an evolving social experiment started 40 years ago. Thanks for watching.