ummm.... we have people come through with them... don't know why you think we'd care... jealousy; maybe that we're not even allowed to wear ones we purchase ourselves? Granted, I don't work with AITs, but I've never heard of a ban on medical instrumentation. Then again, no one will tell me if they did external measurements at the unshielded aperture where they have TSOs standing all day or X feet away at the shielded part....
Honestly, always will opt out on the basis that everything is done in a lab dog and pony show, when I've seen how hard it is to get a cabinet x-ray system with clear damage taken out of service based off of the observations of the grunts ("It's certification is good for another 8 months, therefore, nothing could be wrong"). (next story about being asked to prove the immediate exposure risk to a lower level manager deleted)