Missing Titanic tour sub: Former Navy sub captain on rescue options
Retired Navy Capt. David Marquet, a former submarine commander, spoke with ABC News about the risks to rescue the lost tour submersible. Rescuers racing against the clock to save the five people trapped in a tourist submersible nearly two miles deep in the Atlantic Ocean are facing major obstacles that could make saving the people onboard extremely difficult, according to a former Navy submarine commander. Retired Capt. David Marquet told ABC News on Monday that this type of rescue operation is complicated because there aren't nearby U.S. or Canadian underwater vessels that can go as deep as the Titanic wreckage, which sits 13,400 feet below the ocean's surface. Also, the ocean is pitch black at that depth. "The odds are against them," Marquet said. "There's a ship in Boston that has this ability to either lower cable and connect to it or have a claw. It's still a thousand miles away." MORE: Submersible on Titanic tour reported missing off Newfou...