a NOVA production by the New York Times/Granada Factuals USA and Lone Wolf Pictures, Inc., for WGBH/Boston in association with Channel 4 ; directed by Kirk Wolfinger ; produced & written by Matthew Collins
a production of WETA in association with Varied Directions Intl. ; PBS ; executive producers, Ricki Green & David Hoffman ; producer, Kirk Wolfinger ; directed by David Hoffman ; writer, William Duggan, Jr