Lines of Code

Code names used by the NSA.

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Signals for Observation

Field instructions for agents of the Stasi, the secret police agency of the East German government.

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How to recruit an OSS agent.

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Pop lyricists share their surveillance concerns.

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Hidden messages, deceptive objects.

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Fifteen hundred years of industrial espionage.

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False flags and secret agendas.

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The demise of spies.

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Secret messages, from Caesar to Snowden.

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Biblical spycraft.

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Agents in the field.

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