Proceedings of the Tenth United Engineering Foundation Conference, held in Santa Barbara, California, November 3-8, 2002. Sponsored by the United Engineering Foundation; Water and Environmental Planning and Management Committee of the Environmental and Water Resources Institute of ASCE. Supported by National Science Foundation; U.S. Army Corps of Engineers; Institute for Water Resources. This collection contains 14 papers that address the risk of terrorism, especially after the terrorist attacks on the United States on September 11, 2001. Topics include: risk and vulnerabilities of terrorism of homeland water resources system of systems; methodological perspectives of risk of extreme events; interconnectedness and interdependencies between the water resource system of systems and other infrastructures; and institutional and organizational structuring associated with risks of terrorism.