Comment Re:Security Theater (Score 4, Informative) 171
All the people who complain about having to buy water make me laugh.
The prohibition is on the liquid, not the container. If you want to have a bottle of water on the plane then carry an empty bottle through security. I've carried reused plastic bottles, Nalgene hiking-type bottles, and even a metal Kleen Kanteen through security without any problems. Once you're through security, find a water fountain and fill up!
Just remember to vent the bottle once on the plane. The pressure changes can leave you with a leaking bottle.