a Paladin Invision production for Penguin Television in association with PBS ; director, part 1, David Wallace ; producer, part 1, Sun Shuyun ; writer & series producer, William Cran
a production of Public Affairs Television, Inc., in association with Thomas Lennon Films ; a presentation of Thirteen/WNET, New York ; produced by Joseph Angier, Thomas Lennon ; written by Thomas Lennon & Joseph Angier and Bill Moyers