Ret. Navy Capt. David Marquet, a former submarine captain, described Wednesday what he imagines the five passengers are experiencing in the Titan submersible.
OceanGate Expeditions, which operated the submersible that went missing Sunday on its way to view the Titanic wreckage, strayed from industry norms by declining a voluntary, rigorous safety review of the vessel known as "Titan," according to an industry leader.