I have a feeling this “interview” is going to be “leaked out”. There’s always a ‘price’ for everything.
You can bet that the tape of that interview have not been digitized, are not in the general archives and are under lock and key.
Such things are not left to chance.
I’d say there’s at least a 50/50 chance a Clinton agent gets to it first and it goes missing. And the backup tapes got overwritten. And the engineer who knows how to recover them committed suicide with two gunshots to the back of the head three weeks ago.