My Ob / Gyn does not look at me completely nude. I am covered modestly except for the area being examined. I receive a medical benefit from the exam. This is different with the NoS.
My Ob, and my husband of 25 years are the only people who I will allow to see me undressed. I maintain modesty even in a gym locker room. Although we have not discussed his feelings about the NoS with regards to me, I know that my husband would have an issue with me being given a dose of radiation without medical benefit, and would protect my desire for modesty at a security check point.
I have been "randomly" selected (and opted out) the last 3 out of 3 trips. He travels twice that and has not been selected. He understands and shares my disgust at the new procedures.