Christine M. Du Bois is a manager for the Johns Hopkins Project on Soybeans and the author of "Images of West Indian Immigrants in Mass Media: The Struggle for a Positive Ethnic Reputation," Sidney Mintz is the William L. Straus Jr. Professor Emeritus and a research professor of anthropology at the Johns Hopkins University and the author of "Tasting Food, Tasting Freedom," Chee-Beng Tan is head of anthropology at the Chinese University of Hong Kong and the author of "Chinese Overseas: Comparative Cultural Issues."