“Repatriation of Sacred Material,” Introduction to Ethics of the Conservation of Ethnographic Material, Profs. L. Nieuwenhuizen and M. Kaminitz, New York Institute of Fine Arts Center, New York, NY, September 15, 1992.
“The Ethic of Collecting,” The Dynamics of Museum Ethics: Native Peoples and Ethnographic Collections, Peabody Museum of Archaeology and Ethnology, Harvard University, MA, April 30, 1993
“The Repatriation of the Yurok Basket Hat,” Native Languages: Repatriating the Spirit of Nations, Institute of American Indian Arts Museum, Santa Fe, NM, June 16, 1998.
“Return of the Yurok Basket Hat,” Keynote Address, NAGPRA Summit Meeting of the Northern California Tribes, Yurok Nation, Eureka, CA, February 1999.
“Ethics! What a Wonderful World,” Seminar Series: Ethics Across and Beyond the Curriculum, Prof. G. Levin, Baruch College, New York, NY, February 27, 2003
“The Ethic of Collecting,” in conjunction with Changing Hands: Art Without Reservation, Museum of Fine Arts, Santa Fe, NM, July 8, 2003
“Who is the Criminal, Where is the Justice?” Global Issues in Art Crime, Professor. John Jay College of Criminal Justice, New York, NY, September 27, 2006.
"A Place at the Table," Commencement Address for Union Institute and University’s Sacramento and Los Angeles Academic Centers, August 10, 2008