Marine scientist says 'banging on side' of vessel is best way to communciate | Banfield

Rescuers searching for the Titan submersible are in a serious race against time. Officials estimated the sub had 40 hours of "breathable air" left Tuesday. David Guggenheim, the founder and president of Washington, D.C.-based nonprofit organization Ocean Doctor, weighs in on "Banfield." More: https://www.newsnationnow.com/travel/missing-titanic-tourist-submarine/titanic-tour-submersible-missing-2/ #missing #sub #titanic Watch #Banfield: https://www.newsnationnow.com/joinus On "Banfield," big-name celebrities, newsmakers and public figures join Ashleigh for a unique opportunity to sit down and talk. No debates. No shouting over each other. A conversation. Weeknights at 10pm/9C. #Banfield NewsNation is your source for fact-based, unbiased news for all America. More from NewsNation: https://www.newsnationnow.com/ Get our app: https://trib.al/TBXgYpp Find us on cable: https://trib.al/YDOpGyG How to watch on TV or streaming: https://trib.al/Vu0Ikij