Could have affected the submersible, or whether it's various motors and propellers. >> it could be entrapped. it's very easy for it to suddenly get caught on something, and it can't come back to the surface. >> that titanic sank in 1912, after hitting an iceberg. more than 1500 people died. the wreck was discovered in 1985. split into two parts. recently, an underwater scanning project, using deep sea mapping created no, spectacular images of the ship. it's become a popular and expensive tourist destination. it cost $250,000 per person to take a trip to the titanic. on the titan submersible th...