The wreck is at 1400 feet. It will take special tech to recover anything let alone anything inside
I don’t think you could keep a recovery expedition secret
(cough cough) Azorian (cough cough)
Watched an amazing video yesterday about the salvage of a fuel truck that fell of a barge in 1200’ of water in British Columbia.
Two years of planning later it was raised intact using a submersible ROV, some cranes/cables/custom equipment without spilling a drop of the cargo.