He was on sub that got stuck on a Titanic exploration. Hear what he says Titan crew is experiencing

Dr. Joe Macinnis, a Titanic expert, scientist and undersea explorer, was aboard a submarine that explored the Titanic wreckage and had difficulty leaving the site after it got stuck. Hear about his experience and what he thinks the crew of 5 is going through as searches continue for the Titan submersible. #CNN #News