Global sourcing, supply-chain reengineering, and other sourcing practices undoubtedly help companies reduce costs and improve efficiency. But these practices can also carry a hidden cost: increased exposure to the risk of supply-chain disruption. This series of research reports explores one important category of supply-chain risk in depth: the risk of physical disruption along the supply chain due to natural or man-made disasters. Through a survey and in-depth interviews, senior finance executives at leading U.S. companies discuss their supply-chain risk management plans, priorities, and concerns, and share the practices that have worked especially well to reduce their companiesı exposure to these risks.