No idea if it’s true, but I read a story about a team who were decommissioning telecommunications hardware at closed US military bases in Germany. One day they found a cable that appeared to be still live. It wasn’t marked on their plans and no-one they asked knew what it was. Eventually they decided to cut it.
Then they got a call from their extremely angry commander. That old cable that no-one knew about was the hotline between the White House and the Kremlin.
