Rothenberg has conducted research on a variety of issues, including Mexican migration to the United States, transition from military to democratic rule in Latin America, social and economic development and democratization, truth com-missions, human rights and the social impact of state terror and violence in Latin America. Parts of this article are excerpted from With These Hands: The Hidden World of Migrant Farmworkers Today (Harcourt Brace 1998; revised paperback edition, University of California Press: 2000).