The Titanic Sub Tragedy

Five adventure-seeking people, including a billionaire and a son who was terrified to go but didn't want to upset his father, died on a sub tour to the Titanic wreckage. How did the rescue attempt go down? What's it like in one of these subs? Stephen Wood is a professor and chair of the Ocean Engineering Department at the Florida Institute of Technology in Melbourne and a man with some answers. See omnystudio.com/listener for privacy information.