Theresa Cardinal Brown, Bipartisan Policy Center director of immigration and cross-border policy; Roberto Gonzales, Harvard professor of education and director of the Immigration Initiative at Harvard; Marcelo Suárez-Orozco, UMass Boston Chancellor; Daniel Tichenor, University of Oregon chair of social science and Program for Democratic Governance director; and Jia Lynn Yang, The New York Times national editor and author of "One Mighty and Irresistible Tide: The Epic Struggle Over American Immigration, 1924-1965," explore the history of and contemporary issues in US immigration policy with Julia Preston, contributing writer to The Marshall Project.