So there's something you didn't consider - Documentation can be stolen and used against you far more readily than people. In a sense you could consider each pe

So there's something you didn't consider - Documentation can be stolen and used against you far more readily than people. In a sense you could consider each person who has knowledge to be an air gapped data bank with a limited lifespan. Theres some very clear issues with that system, but that's arguably the effective intention behind not documenting war related development until well after the useful lifespan of the development.