Under this initiative, Quanterion, as part of its operation of the Reliability Information Analysis Center (RIAC) collected system, equipment, and assembly data and information on items of interest to homeland security, and the nation’s critical infrastructure in general. It also developed a compendium of organizations within the government dealing with the diverse issues associated with Homeland Defense. Terrorist activities and recent national disasters have emphasized the need for this type of data in planning for, and reacting to, emergency situations. While the RIAC is already chartered with the collection of reliability data, the initiative proposed here represented a new application of its reliability expertise.