a report by Claus Schenk ; written and directed by Claus Schenk ; production, Alexandre Kegler, Sigrid Beck ; produced by CapricornFilm on behalf of ZDF
a Frontline co-production with Hedrick Smith Productions ; WGBH Educational Foundation ; Frontline executive producer, David Fanning ; senior producer, Hedrick Smith ; producer, Marc Shaffer ; written by Hedrick Smith and Rick Young ; director, Rick Young