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