A complex set of telecommunications links was used to permit eight geographically separated expert panels (in Austria, Poland, USSR and USA) to participate in a Delhi-type exercise conducted in connection with an IIASA workshop on "Systems Assessment of New  Technology: International Perspectives". No significant technical difficulties were encountered in creating and using this communication mechanism, but a number of socio-psychological and procedural problems arose, which were serious enough to prevent substantively useful results from being obtained. It seems clear, however, that if such an  activity were to focus on questions agreed to be worthwhile, with  participants and an agenda structure truly suitable for resolving  these questions, then a number of relatively minor organizational  and informational adjustments should permit "Computer Assisted Panel Sessions" to become a useful tool for international scientific  cooperation.