Mapping the Risk: After the events of September 11th, the United States government and its diverse set of agencies became very concerned about the amount of publicly available geospatial information. The primary concern was that terrorists and other militant groups could use such data to attack key parts of the country’s infrastructure. Utilizing the resources of the National Geospatial Intelligence Agency, a team of researchers at the RAND Corporation wrote this report in order to develop a framework for assessing the implications of making such geospatial information available. The report itself consists of five chapters and an appendix that details which federal agencies were examined, which federal geospatial data sources where identified, and so on. Chapters contained within the work include one on key policy recommendations and another that outlines what the key information needs of potential attackers might be.