I think your descriptions are compelling on this point, given the low power consumed by MMW, wrt safety. The pose is a stumbling block personally, and a bigger stumbling block are the huge number of false positives that can get you an immediate feel-over in locations you don't want to be felt. That is a huge stumbling block. Plus aiding and abetting this search regime. I had airports I could fly out of without scanners. No longer. My immediate solution was to quit flying. This hobson's choice I believe, is turning out to be quite costly to airlines; the thought of having to make it makes ANY alternative to flying look more attractive and worth the sacrifice of time.