FILE-The Polar Prince arrives at the port in St. John's, Newfoundland in this June 24, 2023, file photo. Authorities from the U.S. and Canada began the process of investigating the cause of the fatal Titan submersible implosion even as they grappled with questions of who was responsible for determining how the tragedy unfolded. The deadly implosion of an experimental submersible en route to the deep-sea grave of the Titanic last June has not dulled the desire for deep-sea exploration. Tuesday, June 18, 2024, marks one year since the Titan vanished on its way to the historic wreckage site. (Adrian Wyld /The Canadian Press via AP, file)
FILE-The Titan launch barge is moved to the Coast Guard yard at port in St. John's, Newfoundland in this June 24, 2023, file photo. The deadly implosion of an experimental submersible en route to the deep-sea grave of the Titanic last June has not dulled the desire for deep-sea exploration. Tuesday, June 18, 2024, marks one year since the Titan vanished on its way to the historic wreckage site. (Adrian Wyld/The Canadian Press via AP, file)
FILE - Commander Paul-Henri Nargeolet laughs, at Black Falcon Pier in Boston on Sept. 1, 1996. Nargeolet and four others died when the submersible Titan imploded near the wreckage of the Titanic one year ago. (AP Photo/Jim Rogash, File)
FILE-A man looks at morning newspapers which published condolence messages for two victims of Titan submersible incident, Shahzada Dawood and his son Suleman Dawood, at a roadside stall, in Islamabad, Pakistan, Tuesday, June 27, 2023. The deadly implosion of an experimental submersible en route to the deep-sea grave of the Titanic last June has not dulled the desire for deep-sea exploration. Tuesday, June 18, 2024, marks one year since the Titan vanished on its way to the historic wreckage site. (AP Photo/Anjum Naveed, File)
FILE-Debris from the Titan submersible, recovered from the ocean floor near the wreck of the Titanic, is unloaded from the ship Horizon Arctic at the Canadian Coast Guard pier in St. John's, Newfoundland, Wednesday, June 28, 2023. The deadly implosion of an experimental submersible en route to the deep-sea grave of the Titanic last June has not dulled the desire for deep-sea exploration. Tuesday, June 18, 2024, marks one year since the Titan vanished on its way to the historic wreckage site. (Paul Daly/The Canadian Press via AP, File)
FILE-OceanGate CEO and co-founder Stockton Rush speaks during a presentation on findings after an undersea exploration of the SS Andrea Doria wreckage in the Atlantic Ocean near Nantucket, on June 13, 2016, in Boston. The deadly implosion of an experimental submersible en route to the deep-sea grave of the Titanic last June has not dulled the desire for deep-sea exploration. Tuesday, June 18, 2024, marks one year since the Titan vanished on its way to the historic wreckage site. (AP Photo/Bill Sikes, File)