For decades, community members and allies have complained about the diesel truck traffic around the Port of Oakland. People who live in this neighborhood, between several freeways and backing up to one of the busiest ports in the nation, have elevated instances of asthma, and shorter life spans, than others in the county. We meet the activists who are trying to change this reality, and we hear about the complex politics and alliances that have resulted in some hope that change is coming. The phrase "diesel death zone" is used more often with areas in Southern California, but we believe it applies here as well. Sarah Holtz reports.