A year after an experimental submersible imploded en route to the Titanic, unanswered questions linger — with no immediate answers. Tuesday marks one year since the Titan vanished on its way to the historic wreckage site. After a five-day search that captured the world's attention, officials said the craft had been destroyed and all five people on board killed. The U.S. Coast Guard quickly convened a high-level investigation into what happened. Concerns leading up to the investigation included the Titan's unconventional design and its creator’s decision to forgo standard independent checks. #Oceangate #Titan Start your day with "Morning in America," NewsNation's live three-hour national weekend morning newscast hosted by Hena Doba. Saturday and Sunday starting at 7a/6C. #MorningInAmerica NewsNation is your source for fact-based, unbiased news for all America. More from NewsNation: newsnationnow.com Get our app: trib.al/TBXgYpp Find us on cable: trib....