Rubén G. Rumbaut is Professor of Sociology at Michigan State University. He is coauthor, with Alejandro Portes, of Immigrant America: A Portrait (California, 1996), and coeditor of Immigration Research for a New Century: Multidisciplinary Perspectives (2000) and Origins and Destinies: Immigration, Race, and Ethnicity in America (1996). Alejandro Portes is Professor of Sociology at Princeton University and Director of the Center for Migration and Development, Woodrow Wilson School for Public Affairs. He is the coauthor of City on the Edge: The Transformation of Miami (California, 1993) and Latin Journey: Cuban and Mexican Immigrants in the United States (California, 1985). Portes is the 2010 recipient of the W.E.B. Du Bois Career of Distinguished Scholarship Award from the American Sociological Association.