I have a feeling the Feds have been lying to us about how much these full-body scanners can really see. For instance, in
this picture, you can't see the *unit* at all. So, if the mocked guy's unit in the article could really be seen and commented on, it is clear that the Feds are lying to us.
(NSFW. Don't click if you're offended by nudity.):
It's probably more like this, which is disturbing.