TSA is security theater that fails over 90% of real-world tests. It just wastes a ton of time, jet fuel, and people’s energy who could be doing jobs that actually help others or even just hanging out because that would literally be a more productive use of their time.

Apparently new x-ray systems are now able to differentiate the density of water from other more dangerous chemicals, which has made so some airport customs do in fact allow water bottles through.

Video talking about it

You can’t get on bord con a nail clipper, but a bottle with 250 ml Polonium no problem.