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n. Espionage undertaken to detect and counteract enemy espionage.

n. All those activities undertaken to neutralize or exploit the espionage activities of another nation or an enemy

n. spying on the spies

"JACOBSON: Well, I don't know specifically, but I will say that all members of the U.S. military are trained in what's called counterespionage, counterintelligence activities, in terms of being able to look at suspicious activities, things that may not seem right, such as someone who doesn't have access to classified information seeking out that information."

counterintelligence   

counterintelligence   

espionage   

basedin    antiterrorism    backstabbing    speakers'    delation