Re: Actually, NASA has the code.
NASA warehouses probably have also the Ark of the Covenant somewhere, a black monolith, alongside the original good-res tapes recorded in Australia of the Moon landing, and I think also some alien messages offering to share millions of zuwhqiw if you reply and help them (if you do, they abduct you with a beam of light, of course).
And the missing Doctor Who and Dad's Army episodes, and, oddly enough, the 1950 TV production of "Miss Mabel"