In the post-September 11 world, the possibility of dam infrastructure terrorismthe malicious use of weapons and cyber intrusion to cause devastating damage to the dam infrastructure sector along with, literally, its cascading effectsis very real. Thus, the need is clear and so is the format and guidelines presented in this text to improve protection and resilience of the Dams Infrastructure Sector. This book describes the sector-wide process required to identify and prioritize assets, assess risk in the sector, implement protective programs and resilience strategies, and measure their effectives.