An episode of a new four-part special on PBS has broken down the complexity of America's transportation system to show just how interconnected and intricate these systems are.
The series, "America Revealed", looks at different systems in areas of American life. The second episode, "Nation on the Move," explores 200,000 miles of railroads, 5,000 airports, and 4 million miles of road to show how Americans are the most mobile people on earth. The special is hosted by past Survivor winner Yul Kwon.
Kwon shadows workers from all forms of transportation, as well as at various organizations and groups. He also highlights the history of all these systems, mostly built during the 19th and early- to mid-20th centuries, and describes why they are in need of substantial upgrade in order to keep up with movement of the American population.
