Sleeper Agent

A sleeper agent is a spy who is placed in a target country or organization, not to undertake an immediate mission, but rather to act as a potential asset if activated. Sleeper agents are popular plot devices in fiction, in particular espionage fiction and science fiction.

Read more about Sleeper Agent:  Sleeper Agents in Espionage, Fictional Sleeper Agents

Famous quotes containing the word agent:

    Only a fully trained Jedi knight with the Force as his ally will conquer Vader and his emperor. If you end your training now—if you choose the quick and easy path, as Vader did—you will become an agent of evil.
    Leigh Brackett (1915–1978)