The first set of three papers from the April 2006 workshop investigates distributed actuation attacks in wireless sensor networks, a framework for trust-based cluster head election, and a distributed approach to privacy for visual sensor networks. The second set of three papers proposes localization protocols for sensor networks using only one anchor, a software design tool for automated surveillance operations, and a reliable energy aware routing protocol. The remaining two papers examine redundancy versus lifetime tradeoffs for environment monitoring, and two methods for clustering sensor networks. No subject index is provided. Annotation ©2006 Book News, Inc., Portland, OR (booknews.com)