The around-the-clock search for the missing Titan submersible engrossed the world for days, but after news of the catastrophic implosion that killed the pilot and his four passengers near the Titanic shipwreck, investigators are focusing on how it happened—and if it could have been prevented.
Deep-sea robots will continue searching the North Atlantic sea floor for clues. Investigators in Canada are looking at the Titan’s Canadian-flagged support ship. U.S. authorities are looking into other aspects of the tragedy.
