Missing Titanic submarine: Vessel plagued by concerns about possibly 'catastrophic' technical issues before it disappeared

The tourist submarine that went missing while surveying the wreck of the Titanic was the subject of concerns from experts and observers over its design and lack of certification by any kind of marine regulatory body. Titan, a Cyclops-class manned submersible, was designed and built by OceanGate, Inc., for "site survey and inspection, research and data collection, film and media production, and deep sea testing of hardware and software," according to the company. While it has been touted by the company as a state-of-the-art machine, experts and observers expressed concerns...