Espionage, for the most part, involves finding a person who knows something or has something that you can induce them secretly to give to you. That almost always involves a betrayal of trust.
Aldrich AmesI could have stopped it after they paid me the $50,000. I wouldn't even have had to go on to do more than I already had: just the double agents' names that I gave.
Aldrich AmesThe difficulties of conducting espionage against the Soviet Union in the Soviet Union were such that historically the Agency had backed away from the task.
Aldrich Ames