I’ll call the person who is the worst spy XX for the present purposes. I’ll give you a few hints so you can easily figure out who this person is. XX worked for the US government. XX caused more damage to America’s interests than any other person between the early 1980s up until 2001. XX is believed to have caused the deaths of many people who worked for the United States in foreign countries. XX also had connections with the FBI.
Have you figured out yet that it is Robert Hanssen the FBI agent who worked for the Soviets? If so you’re wrong. XX was more highly placed than Hanssen. XX had access to many more top secret documents which were passed on to the Cuban government. XX has been accused of being “directly responsible for the death of Green Beret SGT Gregory A. Fronius who was killed at El Paraiso, El Salvador, on March 31, 1987 during the FMLN attack.”