In January-February 2005, the National Academies Committee on Counterterrorism Challenges for Russia and the United States and the Russian Academy of Sciences Standing Committee on Counterterrorism held a workshop on urban terrorism in Washington, D.C. Prior to the workshop, three working groups convened to focus on the topics of energy systems vulnerabilities, transportation systems vulnerabilities, and cyberterrorism issues. The working groups met with local experts and first responders, prepared reports, and presented their findings at the workshop. Other workshop papers focused on various organizations' integrated response to acts of urban terrorism, recent acts of terrorism, radiological terrorism, biological terrorism, cyberterrorism, and the roots of terrorism. Table of ContentsFront MatterReport of U.S.-Russian Working Group on Energy VulnerabilitiesReport of U.S.-Russian Working Group on TransportationVulnerabilitiesReport of U.S.-Russian Working Group on Cyberterrorism IssuesCybersecurity and Urban Terrorism-Vulnerability of the EmergencyRespondersNews and Terrorism: Communicating in a CrisisProblems of Urban Terrorism in RussiaTerrorist Acts in Moscow: Experience and Lessons in EliminatingTheir ConsequencesCritical Integration and Coordination Issues in Urban SecuritySpecial Characteristics of Firefighting in Urban AreasA Decision Informatics Approach to Urban Emergency ManagementEfforts of Russian Ministries in Implementing Measures to PreventActs of TerrorismSafety and Security in MegacitiesThe Role of Science and Technology in Homeland Security andCountering Terrorism: Overview of Key Activities at the NationalAcademiesDoes the Emergence of Insurgencies Provide Lessons for Terrorism?Unauthorized Use of Radiation Sources: Measures to Prevent Attacksand Mitigate ConsequencesOther Dimensions of Radiological TerrorismBiological Terrorism: Regional PreparednessOn the Events in BeslanMeasuring Progress, or Lack Thereof, in Combating TerrorismOn Efforts to Counter International Terrorism in the RussianFederation and Possible Areas of U.S.-Russian Cooperation in thisAreaCybercrime and the Training of Specialists to Combat It in RussiaMethodology for Assessing the Risks of TerrorismAppendix A Methodology for Assessing the Risks of TerrorismAppendix B Russian Academy of Sciences-U.S. National AcademiesJoint Committees on Countering Terrorism