Written and edited by leading experts in the field, this timely resource presents a thorough overview of the technical facets of Homeland Security (HS). This practical book offers you expert guidance on sensors and the preprocessing of sensed data, the handling of sensed data with secure and safe procedures, and the design, modeling and simulation of complex HS systems. You learn how to store, encrypt and mine sensitive data. Further, the book shows how data is transmitted and received along wired or wireless networks, operating on electromagnetic channels. Critical topics include embedded wireless sensor networks, tapping the vehicle grid for homeland security, visual detection of humans, mining databases, single-database private information retrieval, the channel model for sensor networks in an urban environment, sensing through walls, and stopping cars and mobiles. This unique, cutting-edge volume includes over 100 illustrations and more than 460 references that support key discussions throughout the book.