Session moderator and speaker, "Faith in the Future:  The Common Task of Religion and Science in the New Millennium," Reykjavik and Thingvellir, Iceland, July 5 -8, 2000.

Invited lecturer on "Technology and the Global Community," part of the annual Spring Lecture Series at Eastern Michigan University (Ypsilanti, Michigan), May 24, 2000.

Consultant on the future political environment for science, Sandia National Laboratories, Albuquerque, New Mexico, May 2, 2000.

Invited speaker, conference on "Science and Technology in the Eye of the Law," The Royal Society, London, England, March 21, 2000.

Invited speaker, plenary session, President's Committee of Advisors on Science and Technology, White House Conference Center, Washington, DC, February 17, 2000.

Invited speaker, seminar on science policy, The Brookings Institution, Washington, DC, January 24, 2000.

Invited lecturer, Seminar on Computer Security, Center for Education and Research in Information Assurance and Security (CERIAS), Purdue University, October 22, 1999

Keynote speaker, kickoff luncheon for the 1999-2000 Commerce Science and Technology Fellowship Program, U.S. Department of Commerce, Washington, DC, September 29, 1999

Invited speaker, Seminar on Environment, Science, and Technology in Foreign Policy, U.S. Foreign Service Institute, Arlington, Virginia, September 13, 1999

Co-organizer, Workshop on the Transformation of Innovation System (an official satellite event of the UNESCO-ICSU World Conference on Science), Budapest, June 24-25, 1999

Invited Speaker, International Workshop on the Future of the Research University, Israel Academy of Sciences and Humanities and the Planning and Budgeting Committee of the Council for Higher Education, Jerusalem, June 1-3, 1999.

Invited lecturer, National Institute of Science and Technology Policy and Science and Technology Agency, Tokyo, Japan, May 15-22, 1999.

Invited witness, Hearing on the Federal Research and Development Budget for Fiscal Year 2000, Subcommittee on Science, Technology, and Space, Committee on Commerce, Science, and Transportation, U.S. Senate, Washington, DC, April 15, 1999.