A federal agent (also known as a special agent, federal police officer, or federal operative) is an employee of an agency or branch of the federal government, typically one responsible for investigating organized crime and terrorism, handling matters of domestic or national security, and who practices espionage, such as the FBI, CIA, NSA, or MI5.
The following is a list of slang terms used to refer to federal agents, which are used by the public, members of organized crime, anti-establishment political groups or individuals, and occasionally other federal employees.
This list does not encompass slang terms used to refer to local police departments, nor those that denote the agencies themselves.
"Glow in the dark" and its derivative terms have been used to refer to various groups: newcomers that do not fit in with the culture of certain forums and are thus suspected to have bad intentions, journalists who report on extremist groups, tech companies that collect users' personal data, and others.
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