Answer:
Oliver Crangle, a dealer in petulance and poison. He's rather arbitrarily chosen four o'clock as his personal Götterdämmerung, and we are about to watch the metamorphosis of a twisted fanatic, poisoned by the gangrene of prejudice, to the status of an avenging angel, upright and omniscient, dedicated and fearsome. Whatever your clocks say, it's four o'clock, and wherever you are it happens to be the Twilight Zone.
Explanation:
The answer is: They needed the nation to hear and see their story.
In the excerpt from "We Shall Not Be Moved," the strikers need publicity so that everyone can listen to their claims. For example, the text mentions they need photographs and reports from eyewitnesses while they are persecuted aggresively by criminals and the police.