Mass DestructionThe place: The steep mountains outside Salt Lake City. The time: The first decade of the twentieth century. The man: Daniel Jackling, a young metallurgical engineer. The goal: A bold new technology that could provide billions of pounds of cheap copper for a rapidly electrifying America. The result: Bingham's enormous "Glory Hole," the first large scale open pit copper mine, an enormous chasm in the earth and one of the largest humanmade artifacts on