Scott Warren snapped off the vision screen and sat down in front of his typewriter. Through the glass side of the building he could see the lights of the celebrations whose sounds he had just silenced. He lighted a cigarette and started to type out the final edition of Today on Mars for transmission by Interradio to the New York bureau of the Galactic News Service. He started the news roundup: "IOPA, MARS—(GN)—Events on Mars were at a snailspace today, the midpoint of the traditional three-day L