Billionaire Is on the Missing Titanic Tourist Sub...

Cameron told ABC News that he believes the Titan's hull began to crack under pressure, and that its inside censors gave the passengers a warning to that effect.

"We understand from inside the community that they had dropped their ascent weights and they were coming up, trying to manage an emergency," he said. ...

"I'm struck by the similarity of the Titanic disaster itself, where the captain was repeatedly warned about ice ahead of his ship, and yet, he steamed up full speed into an ice field on a moonless night, and many people died as a result," Cameron said. "And for a very similar tragedy, where warnings went unheeded, to take place at the same exact site, with all the diving that's going on all around the world, I think it's just astonishing, it's really quite surreal."

Cameron stressed that deep submergence diving is "a mature art," with very few accidents when it began in the 1960s and an even better safety record now, thanks in large part to the certification protocols that almost all such vehicles follow — except this one. ...