With flammable hand sanitizer being given a medical exemption, why aren't 12 oz of water in water bottles given the same "medical exemption"? Being properly hydrated is one way to reduce susceptibility to infections and complications from infections, but the TSA seems to be still on a drive to frustrate the transport of passengers' filled water bottles at TSA screening checkpoints. And the TSA ban on filled bottles of water seems to be still driving people to drink from shared water fountains, to buy overpriced bottles of water or even re-use bottles of water that haven't been washed and dried properly -- and that isn't a great way to help passengers protect themselves from infection risk. The TSA policy change with regard to a greater allowance for passenger hand sanitizer to get airside seems to be a PR stunt when the TSA is still doing so many other things that are adverse to positive health outcomes.