The US Government Did Not Have a Dedicated Signals Intelligence Agency

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The OSS was infiltrated by the KGB, making it the most penetrated intelligence service in history. Surprisingly, the US government did not have a dedicated signals intelligence agency, which led to a catastrophic intelligence failure during Pearl Harbor.

The Cold War started earlier than we think — and maybe never ended at all. Historian Calder Walton says understanding the US-Soviet conflict prepares us for this era of tensions with Russia and China.

This episode was produced by Amanda Lewellyn, edited by Matt Collette with help from Amina Al-Sadi, fact-checked by Laura Bullard, engineered by Patrick Boyd and Rob Byers, and hosted by Noel King.

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