Homeland Security has become a major concern. Many agencies, including national and international law enforcement and intelligence agencies have cooperated by providing information using information in a net-centric approach. Net-centric computing covers a range of sub-specialties including - computer communication network concepts and protocols, multimedia systems, Web standards and technologies, network security, wireless and mobile computing, and distributed systems. Net-Centric Web Approaches to Intelligence and National Security presents the work from experts in this emerging field.