search for TItanic later 'revealed' to be cover story for secret search for sunken subs USS Thresher and USS Scorpion.
https://www.9news.com.au/world/titanic-us-uss-thresher-scorpion-national-geographic-museum-navy-robert-ballard/d34082a9-58a4-4041-8379-cd6bfc274469
this anon wonders if the subs were a cover story within a cover story, and the real search was to see if it was really Titanic on the bottom, or if it was sister ship Olympic instead.
https://theunredacted.com/titanic-conspiracy-the-ship-that-never-sank/