I've been through once, because they found some substance on my person and wouldn't let me on my flight otherwise (though they were very polite in my instance).

I've been through once, because they found some substance on my person and wouldn't let me on my flight otherwise (though they were very polite in my instance). I opted out before that and still have since. They wore you out, just keep wearing them out. Call the ACLU since they made you wait that long. Continue to opt out. You lost your "never been through the machine" badge. That sucked for me too, well, let's get over it. (At least it wasn't a backscatter, right?) This is really about raising awareness, as it were, right? Having lost one time doesn't really change that. By that measure we already "lose" millions of times because everybody else goes through those machines.