Geeze, its a tough audience here isn't it.
I took from the video (couldn't hack watching all of it though) that a recent study into something that had not been studied before found some negative outcomes.
If I then do a quick check of the links provided to rubbish this claim the very first one I clicked on, randomly on first page of those results states :
This paper reviews the human health effects of fluoride. The authors conclude that available evidence suggests that fluoride has a potential to cause major adverse human health problems, while having only a modest dental caries prevention effect. As part of efforts to reduce hazardous fluoride ingestion, the practice of artificial water fluoridation should be reconsidered globally, while industrial safety measures need to be tightened in order to reduce unethical discharge of fluoride compounds into the environment.
www.hindawi.com/journals/tswj/2014/293019/
Issue I see with flourinating public water is that it isn't a choice for the consumer.
Removing alchol from beer, not adding tabbacco to ****, reducing sugar in Big Mac's, taking an asprin or a multi-vitamin pill every day - all have positive health benefits, but none are surreptitiously imposed on people. We don't add vitamin C or calcium or spinch extract to water, so why add flourine ?
I'm not saying it is bad or done for nefarious reasons, I'm just asking what is so special about floride compared to anything else that is has to be added to public drinking water ?
....and before somebody mentions chlorine, well, that is added to ensure the water is safe. Like not selling a mouldy ham or chilling yoghurt. It is different to any floride argument..