Hi all,
Last night we came home from seeing our youngest receive his Ph.D in Phoenix, Arizona. Proud parents!
Trip went reasonably smoothly and we were TSA pre-checked both going to and from. I flashed a TSA card saying that I wear diapers to one inspector and he just waved me past.
I tried some timed-voiding to extend the useful time of my diaper and had some success. I made it to the toilet the first couple of times going each way, and then did not, but I was able to complete the trip on only one diaper - better than I had predicted.
Now - on to the mystery. I checked two bags. One normal bag full of clothes and one full of diapers, absorbent pads, tape, rash cream, etc. I use cable ties to lock the bag as they give me indelible proof that TSA or other party has been into my bags. Here is the mystery - TSA searched the same bag both outbound and returning!!
That defies the odds of chance, so, what did they scan inside that bag that triggered their interest?The bag contained, in addition to a bunch of diapers and pull-ups, an emergency change of clothes, a bungee cord and plastic chain, an empty one-quart bucket, an enema syringe with a large nozzle (these latter three for my enemas), a bottle of Miralax, and a portable bathroom grab bar with suction cups.
I can only surmise that the grab bar probably has a metal rod inside the plastic which would show up on an X-ray. However, that should not trigger an inspection - or would it?
In another forum, someone previously speculated that, while a couple of diapers arouse no TSA interest, that a suitcase contains enough diapers that all of the absorbent gel crystals together somehow appear or are sensed as something more sinister.
That is your mystery - I would love to hear some theories!
--John
Big enough that it is embarrassing beyond just being enema gear. It has to show up on the scanner. Yet no one has ever asked to inspect the backpack! Go figure. 
Of course, when we are going through the pre-flight TSA checkpoint they have little time to indulge in mere curiosity.
Puffy