On May 8, 1992, twenty-six men went underground to work the night shift at the Westray coal mine in Nova Scotia. They never came back. The massive explosion that claimed their lives the next morning sent shock waves across North America and around the world. Calculated Risk is the only comprehensive account of the worst mine disaster in modern Canadian history. It recounts the stories of the miners who died and the families they left behind and exposes the safety lapses, political intrigue and business decisions that culminated in disaster.