The Terrifying Submarine Incident the USSR Erased for 30 Years

In 1961, the Soviet ballistic missile submarine K-19 suffered a catastrophic nuclear reactor failure off the coast of Greenland. Driven by severe Cold War pressure, the vessel deployed with a critical engineering flaw: no backup cooling system. When the primary coolant leaked, the crew faced an overheating core that threatened a radiological explosion and a potential global conflict. This video examines the mechanical failure, the improvised repair, and the subsequent KGB cover-up.