So I finally had to officially refuse (“opt out” is the official term) the full-body scanner and get the TSA full pat-down (usually I can pick a line where there is no such scanner, or they are picking random people instead of everyone). My pat-down wasn’t as intimate as reports suggested (though it did take more time than the scanner would have). YMMV (your mileage may vary).
Still, better than the unknown health risk of the scanner, IMHO.