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Charts & Graphs
Code names used by the NSA.
The demise of spies.
Field instructions for agents of the Stasi, the secret police agency of the East German government.
Pop lyricists share their surveillance concerns.
Fifteen hundred years of industrial espionage.
Secret messages, from Caesar to Snowden.
False flags and secret agendas.
How to recruit an OSS agent.
Agents in the field.
Hidden messages, deceptive objects.