PBS ; produced by John Birt and David Frost ; directed by Jørn Winther ; U.S. distribution by Syndicast Services Inc. ; a David Paradine production, in association with RAI of Italy, TF1, the first network of France, the National Nine Network of Australia, Polygram, and Jack Meyer-Pacific Video Industries Inc
written, produced and directed by Linda Garmon ; a Nova production by the WGBH/Boston Science Unit in association with BBC-TV, NDR International Hamburg and Nederlandse Omroepprogramma Stichting
A co-production of Lost Nation Pictures, Ltd. and Independent Television Service (ITVS) ; with funding provided by Corporation for Public Broadcasting (CPB) ; this program was produced by Lost Nation Pictures ; story editor, Diana Fischer ; researchers, Helen Ryan Dobrowski, Jeremy Wolf ; production consultant, Wendy Riseborough ; graphic design & animation, Joanne Kaliontzis ; executive producer, James Rutenbeck ; senior producer of national productions for ITVS, Richard O'Connell ; executive producer for ITVS, Sally Jo Fifer, Tamara Gould
Bullfrog Films presents ; with host and narrator Jimmy Smits ; producers, Harry Wiland, Dale Bell ; director, Harry Wiland ; writer/producer/editor, Beverly Baroff ; a Media & Policy Center Foundation production in association with Oregon Public Broadcasting
a Frontline Production with the Center for Investigative Reporting in association with KQED ; producers, Cassandra Herrman and David Ritsher ; correspondent, Michael Montgomery