[M2Ys4U]

> Well, Britain decided to hide everything behind the Official Secrets Act, which workers proudly maintained.

Fun fact: GCHQ still refuses to talk about some of the earliest computing work on Colossus and enigma decryption. I was quite surprised to hear this when I was on a tour of The National Museum of Computing at Bletchley Park[0].

I hope that if/when they do decide to declassify that information that they'll hand it over to TNMOC.

[0] https://www.tnmoc.org/ - It's well worth a visit so when they're open again post-COVID see if you can get down there.

[ncmncm]

GCHQ are embarrassed because they lost / destroyed it. "Refusing" is less embarrassing than "ooopsie!".

[sep_field]

do you have a source for this? I imagine you are right, but is there an interesting story about it you've seen?

[ncmncm]

I recommend "Between Silk and Cyanide" by Leo Marks.