Throughout the 1960s, a biologist named Howard Temin became convinced that something wasn’t right in science’s understanding of viruses. His colleagues dismissed him as a heretic. He turned out to be right — and you're alive today as a result. Season Four ends with a bedtime story about how we should be freed by our doubts, not imprisoned by them.
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Merciless Indian Savages | First America
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The Other Johnson and Johnson | From Planet Money
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The Staten Island Problem - Part 5: Revenge of the Forgotten Borough
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