Nah, I think the one guy who knows the thing is gone, the data was on a hard drive that crashed and the backup system didn't work, and the papers copies are probably somewhere except no one knows where and it is faster to reverse engineer the damn thing.

I have no reason to believe that defense projects are not plagued by bureaucracy, office politics and incompetence like in a lot of government entities and large companies. If anything, it is worse because secrecy is a convenient way to hide incompetence. And when information is shared on a "need to know" basis and we realize that no one "needs to know", then it gets lost.

I have touched a bit on defense projects (not in the US) and generally, compared to civilian, open projects, if feels slow and primitive. I didn't get to the super-secret stuff but I have a feeling that the only parts where civilians don't do much better are the ones that only the army is interested in.