The FBI Operatives are the people who work for the Federal Bureau of Investigation (FBI). They are responsible for investigating federal crimes and protecting the United States from threats both domestic and foreign. The two most common terms used to refer to FBI Operatives are Agents (6 letters) and G-Men (4 letters). Agents are the most common type of FBI Operative and are responsible for conducting investigations, gathering evidence, and making arrests. G-Men is a slang term for Government Men, which is another name for FBI Agents.