William J. Broad, science correspondent for The New York Times and expert in deep-sea exploration, shares gripping insights on recent undersea adventures. He discusses the harrowing disappearance of a submersible on a Titanic expedition, highlighting the clash between innovative technology and safety concerns. Broad vividly recounts the allure of deep-sea mysteries, the enchanting creatures encountered, and the thrill-seeking nature of wealthy explorers. He raises critical questions about accountability, rescue efforts, and the future of underwater tourism.