Book Ends: At the beginning of the episode, Peskow is making a cup of tea in his St. Petersburg apartment. When he returns at the end, Krycek is waiting for him, also making tea with his new prosthetic arm.
Character Filibuster: Mulder before the sub-committee. The committee members do not seem too moved and it's rather short anyway, but he gets uplifting background music nevertheless.
Mulder: Why is this so hard to believe? When the accepted discovery of life off this planet is on the front page of every newspaper around the world? When the most conservative scientists and science journals are calling for the exploration of Mars and Jupiter? With every reason to believe that life and the persistence of it is thriving outside our own terrestrial sphere? If you cannot get past this, then I suggest this whole committee be held in contempt, for ignoring evidence that cannot be refuted. Senator Sorenson: This is not why we are here today.
Distressed Dude: Scully helps Mulder away from the explosion in the oil field.
Evil Old Folks: Peskow is a retired, ruthlessly effective hitman well into his twilight years. Downplayed in that he'd really rather have stayed in retirement, and prefers to use diplomacy to deal with enemies he isn't required to kill.
The Man Behind the Man: Krycek is the one who turns to have hired Peskow. Less surprisingly, the episode ends with the Smoking Man visiting Senator Sorenson.
May–December Romance: Implied. The CSM bluntly asserts that the Well-Manicured Man was sleeping with his considerably younger physician, who the latter defends as a trusted member of The Conspiracy. He's also clearly outraged by her murder.