Ok, for all those who are curious, I thought I would let you know my most recent experience of airline travel.
Normally I change before I go through TSA, but I'm running very low on my diapers from bambino and they're currently out of stock, so I'm trying to not be wasteful.
I get to the airport with my wife and I'm wearing a Bellissimo. I've had three good wettings, so I'm wet! I go through the full body scanner no questions or anything. Very, very surprising. However, they did pull my baby powder out and tested it. This was at the PDX airport.
On my return flight same exact thing.....wet diaper full body scanner no questions asked. They just tested my powder. Was happy I was not pulled aside or to a room. Was very shocked but very relieved. So for all who are curious.....this was my experience out of Oregon to LA, California and Back!