An agent is another word for a spy: someone who volunteers or is recruited to pass secrets to an intelligence agency, sometimes taking risks to spy on their own country. Th… See more

A double agent is essentially someone who works for two sides. In the intelligence world, a true double agent is loyal to one side before being “turned” and transferring loyalties to … See more

A detective or investigator works in the field of law enforcement, looking for clues and evidence (usually quite openly) as part of solving a crime. Think Sherlock Homes, or famed FBI … See more

The dictionary definition of intelligence is the ability to acquire and apply knowledge and skills. In the spying world, intelligence means information collected by a governmen… See more