Want to learn more about the deadliest weapon ever built – the hydrogen bomb – which in the 1950s gave the United States and the Soviet Union the power to destroy the world. While the h-bomb took humanity terrifyingly close to the brink of a nuclear apocalypse several times during the Cold War, it may have also stopped World War 3 from happening. Historian of science Alex Wellerstein joins us to explain how this most dangerous invention shaped, and continues to shape, the modern world.

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