A transcript of a hearing on ethnic groups, immigrants, and opportunities for success is provided in this document. Included are prepared statements and supplemental materials by experts on population, ethnicity, public policy, and other issues relating to coexistence of the many ethnic and racial groups which live in the United States. Among the specific issues discussed are: who is mainly responsible for the social welfare of ethnic and racial groups; access to educational and economic opportunities; the efficacy of bilingual education and remedial programs; the labor market; changing demographics; assimilation and the melting pot concept. Minority groups discussed include Blacks, Puerto Rican, Native Americans, and Vietnamese. (KH)