In August 2010, the attention of the world was focused on a mine shaft near Copiapó, Chile. Thirty-three miners huddled in the dark, trapped 2,300 feet underground. They had no idea if help would ever arrive. After 17 days of waiting, they heard drilling. Rescuers produced a small hole in the mine shaft ceiling. That hole was followed by three more, establishing a delivery path for water, food, and medicine. The miners depended on those conduits to the surface above ground, where rescuers had the provisions they would need to survive. On day 69, rescuers pulled the last miner to…