Taxi drivers are the most enduring oppressed minority in New York City history. Race， ethnicity and religion are not sources of the oppression. It lies entirely in the nature of the work. Trapped for about 12 hours each day in the worst traffic in the United States， taxi drivers must suffer the savage frustrations of jammed streets， double-parked cars， immense trucks， drivers from New Jersey--and they can't succumb to the explosive therapy of road rage. Their living depends on self-control.