When Aleida is trying to make the case that Emma was spying for the Soviets, she mentions Aldritch Ames. This is a real person, a CIA agent who began spying for the Russians in 1985. Ames initially was paid $50,000 for what he had intended to be a one time deal to settle his indebtedness, but continued spying for the Russians because the money was so good. In real life, Ames was arrested in early 1994, after having betrayed dozens of American sources in Russia and having collected hundred of thousands of dollars from the Russians.
This episode takes place in March 1995.