I absolutely agree it should be up to the employer. Respect your workplace, or find a new job. I work from home, so I can see why some people would think it kind of lame for me to make that statement, but I also travel all the time, and I don't smoke my e-cig inside of the airport or the plane. Why? Because travel can be very stressful to people, and while I may think it's totally cool to vape away, in that situation it would be inappropriate in my opinion as it could upset the people around me, and because of that I do not use my e-cig until I get outside of the terminal. It's just a common courtesy thing to me. The last thing I want to do is to cause an incident over something so trivial. But that's me, if you want to vape in an airport / workplace / etc. go for it, more power to you, hopefully it works out, but if you know that it could create a negative situation you then have to deal with just ask yourself is it worth your trouble?