California’s San Joaquin Valley produces nearly half of America’s produce—fruits, nuts and vegetables. But drought, shrinking farmland, a water war, and a wave of foreclosures have left the valley in crisis. In “The Valley of Shadows,” a Newsweek special report, documentary photographer Ken Light captures the landscapes, faces, and voices of the region. An interactive map tracks the formation of a “perfect storm” that led to the current conundrum. Light also narrates a thought-provoking slideshow that compares the Depression-era photography of Dorothea Lange to his contemporary images of economic collapse.