While it's a matter of "personal sensitivity," if you click the little picture you get a bigger one. Quit obviously this guy is wearing jockey shorts, not boxers. It would be presumed that the "blurring" is not sufficient to prevent seeing whether a "she" was or was not wearing bra and/or panties.

I would suspect that many people would feel "invaded" if they were made aware that the detail shown in the larger picture represented what the "examiner" would see.

The reassurance that "you get more radiation from the plane's radar than from the x-ray" is not reassuring. The radar might warm your tissues a bit, probably imperceptibly; but penetrating x-rays are a different sort of beastie, in the usual frequencies/intensities being capable of producing ionization within tissues - i.e. chemical changes.

I suppose if they said "it's safer than second hand smoke" people would feel safe enough ...

John