On Feb. 5, 2003, Secretary of State Colin Powell went to the United Nations to make the Bush administration’s closing argument for war with Iraq. Powell didn’t know it at the time, but one major piece of intelligence he cited came from a shady source—a man code-named Curveball. 

How did Curveball’s bad information make it into Powell’s speech? And why did no one listen when a woman from the CIA tried to warn everyone?

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Season 5 of Slow Burn is produced by Noreen Malone, Jayson De Leon, and Sophie Summergrad. Mixing by Merritt Jacob.

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