Titanic submersible missing: What we know about shipwreck-exploring vessel, including who's on board

A submersible carrying five people to see the remains of the Titanic at the bottom of the North Atlantic Ocean is still missing despite a massive search operation. Story: https://abc11.com/titanic-submarine-hamish-harding-missing-oceangate-expeditions/13405724/ Watch: https://abc11.com/watch/live/11065013/ Like us on Facebook: https://www.facebook.com/ABC11/ Twitter: https://twitter.com/ABC11_WTVD