For 30 years ... my 2-3 airline BRAIN-BAGs were adorned w/ USN, A-4, A-6, 'been there', and American Flag stickers ... amongst other things that 'mattered' to me ...
I wanted all those M-Fuckers overseas to KNOW that I was a product of American sunshine ...
I knew the potential 'risks' ... and I decided to do what I did ...
Wouldn't your US-based airline's uniform, plus the US-based aircraft you were either piloting, on, or traveling to/from, kind of give it away?
Of course, I'm in no way questioning your judgement on what was obviously a wholly personal decision for you as a civilian. I just don't see much of a difference.