Marine archaeologist on missing sub: The expedition was 'risky' | Morning in America

The five people on board a missing submersible that was headed for the Titanic shipwreck on Sunday have approximately less than 24 hours of breathable air left. Steve Nagiewicz lays out what could've led to this shipwreck and be preventing the submersible from returning. Watch #MorningInAmerica: https://www.newsnationnow.com/joinus #submersible #missing #Titanic Start your day with "Morning in America," NewsNation's live three-hour national morning newscast hosted by Adrienne Bankert. Weekdays starting at 7a/6C. #MorningInAmerica 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