reminds me of that scene in The Bit Player where they interview Claude Shannon's ex-wife and ask what she thought when she found out Claude had been doing cryptanalysis during the war, and she just reacted with this look of astonishment and, after a moment, "well! I guess that explains a few things"

I knew my mom had been in The Defense Department and read lots of spy novels; I didn't know it had been NSA until she was reading The Puzzle Palace in the 80s.