I flew out of DC a couple weeks ago - there were machines but they weren't using them. Same with flying out of Fort Lauderdale yesterday.

I would have opted out if they wanted to use one. I find the entire thing ridiculous, especially since the machines can't find anything in cavities or anything - so really... what exactly are these machines doing that a metal detector & some sort of explosive sniffing dog or swiping machine couldn't do? But I love traveling too much to decide not to ever travel again because of them.

Re - motion sickness in cruises - I get motion sick, but most especially when I don't have fresh air or wind - so if I stay on deck on a cruise, I don't have much problems with it. I make sure to get an upper level room because it's down in the bowels of the ship that I really have issues.