They left the office, reassuming their masks. They went down among the workers. The crew didn’t look much like "slum kids"—they were mostly middle-aged cadres, most of them women. They wore hair nets and their paper overalls had the shiny look of old bakery bags. They worked in twenty-four-hour shifts—a third of the crew was asleep, in soundproof acoustic cubicles, clustered under the giant mural like Styrofoam barnacles.