Documentary .

America is a nation of vast distances and dense urban clusters, woven together by 200,000 miles of railroads, 5,000 airports and four million miles of roads. These massive, complex transportation systems combine to make Americans the most mobile people on earth. Accompany host Yul Kwon as he journeys across the continent by air, road and rail, venturing behind the scenes with the workers who get us where we need to go. At the federal Aviation Administration command center, listen in on a call with NASA, the sercret service, the military and every major airline to learn how our national flight plan works today. Go along as he meets innovators creating ways to propel us farther and faster in years to come; in Las Vegas, he heads out into the wild night to see how transportation analysts are keeping traffic at bay by revolutionizing the use of one basic tool: the traffic light. Uncover the minor miracles and uphill battles involved in moving more than 300 million Americans every day on infrastructure built in the 19th and 20th centuries.

Watch Wednesday, April 18, 2012 at 9pm.

Watch Introduction to Transport on PBS. See more from America Revealed.

CIRCUS DREAMS documents a year in the life of Circus Smirkus, one of the world’s only traveling youth circuses. The vibrant feature documentary immerses viewers into the lives of the 12-to-18-year-old performers, capturing their intense work ethic, passion for performance, deep friendships and budding loves. With a heartwarming story and compelling characters, Circus Dreams is an inspiring testament to the power of youthful dreams.

Watch Sunday, April 15, 2012 at 9pm on KCPT2.

THE RECONSTRUCTION OF ASA CARTER explores the life and legacy of the best-selling novelist of The Rebel Outlaw: Josey Wales (republished in 1975 as Gone to Texas) and The Education of Little Tree (1976). Billed as an autobiographical story about an orphaned Native American boy, The Education of Little Tree was later revealed as a complete fabrication. The author: notorious white supremacist and Ku Klux Klan leader Asa Earl Carter (under the name Forrest Carter), the writer responsible for George Wallace’s infamous 1963 “Segregation now! Segregation forever!” speech. Friends, colleagues and members of George Wallace’s inner circle provide unprecedented access into the life of this enigmatic man, while scholars and historians reflect on the nature of Carter’s identity shift, his place in the history of the civil-rights movement and his legacy.

Watch Friday, April 13, 2012 at 10pm.

The Reconstruction of Asa Carter – Trailer from Mouth Watering Media on Vimeo.