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:

    I wish not to be given a title or an appointed position. I can and will do more good if I were made a Federal Agent at Large, and I will help best by doing it my way through my communications with people of all ages. First and Foremost I am an entertainer but all I need is the Federal Credentials.
    Elvis Presley (1935–1977)