The engine of the truck pulling up to a building in Trenggalek regency, East Java, was still running as workers swarmed it. The men climbed into the back, unloaded the sacks and transported them by trolley to a room in the back of the building. The room's temperature was higher than any other: a furnace was burning at 700 degrees Celsius.

Without saying much, the men removed the sacks and tossed the contents into the flames. Thrown in were saucep