https://www.cbsnews.com/news/sub-missing-titanic-wreckage-oceangate-frantic-search-rescue-operation/
OceanGate Expeditions' small Titan submersible set off with 5 people, including 3 paying passengers and, at most, about 96 hours' worth of oxygen on board.
titanic wreckagesubstillmissingsite
https://www.cbsnews.com/news/robert-ballard-titanic-wreckage-1985-discovery-artifacts/?ftag=CNM-00-10aab4i
Ballard made a "promise to never take anything from that ship." But court battles over the Titanic's artifacts have ensued for decades.
robert ballardthe titanicfoundwreckage