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