Titan Submersible Investigation Raises Questions and Concerns.

The US Coast Guard is leading an investigation into the implosion of the Titan submersible that was carrying five people to the Titanic, with assistance from Canada, France, and the UK. The investigation will determine the cause of the implosion, and the Coast Guard board can make recommendations for civil or criminal sanctions. The Flyaway Deep Ocean Salvage System, which had the capability of lifting an intact Titan back to the surface, will not be used. The Canadian Transportation Safety Board is also conducting a safety investigation and will share information with other agencies. The deep-sea investigations promise to be long and painstaking, complicated by the fact that the world of deep-sea exploration is not well-regulated.