Whenever the Two Minutes Hate comes on the telescreen, the visage of Emmanuel Goldstein always appears although the program varies on a daily basis,
He was the primal traitor, the earliest defiler of the Party's purity. All subsequent crimes...all treacheries, acts of sabotage, heresies, deviations, sprang directly out of his teaching.
This "Enemy of the People" like the Brotherhood, according to what O'Brien implies to Winston in the latter part of the novel, is a fabrication that the Party has created as a convenient scapegoat for the Party; this hatred of Goldstein and the Brotherhood are used to draw out those who are thought criminals as well as to unify the people in a strong emotion, distracting them from other thoughts. In Chapter One, while the Two Minute Hate is on, the Inner Party member O'Brien momentarily catches the eye of Winston, and Winston feels that they are thinking the same thing:
"...I know about your contempt, your hatred, your disgust. But, don't worry, I am on your side!"
Of course, after Winston and Julia's affair begins, they are trapped as O'Brien seems to share their rebellious views and he enlists them in the Brotherhood; these actions are all done to incriminate them as, ironically, this staunch Inner Party traps the lovers through pretense and later becomes Winston's torturer.