The Summary and Briefings from the Stanford-China Workshop on Reducing Risks of Nuclear Terrorism is the result of a collaborative project engaging researchers from the Center for International Security and Cooperation at Stanford University and several Chinese nuclear organizations focused on the response to nuclear terrorism threats. A goal of the research was to identify prospective joint research initiatives that might reduce the global and regional dangers of such threats. Initiatives were identified in three technical areas: interdiction of smuggled nuclear and radiological materials; nuclear forensics; and countermeasures to radiological (“dirty bomb”) threats. Application of the methodologies of systems and risk analysis to the framing and initial assessment of these areas was emphasized in the project. The workshop summarized in the report brought together the analysis work from this project and related efforts by both Chinese and U.S. analysts.