Book excerpt: Earlier in this century, over one million Mexican immigrants moved to the United States, attracted by the prospect of work in California's fields. The Mexican farmworkers were tolerated by Americans as long as there was enough work to go around. During the Great Depression, though, white Americans demanded that Mexican workers and their families return to Mexico. In the 1930s, the federal government and county relief agencies forced the repatriation of half a million Mexicans--and some Mexican Americans as well. Camille Guerin-Gonzales tells the story of their migration, their years here, and of the repatriation program--one of the largest mass removal operations ever sanctioned by the U.S. government. She exposes the powers arrayed against Mexicans as well as the patterns of Mexican resistance, and she maps out constructions of national and ethnic identity across the contested terrain of the American Dream.