co-produced by Frontline and Hedrick Smith Productions ; senior producer, Hedrick Smith ; producer, Marc Shaffer ; director, Rick Young ; guide written by Aruna Jain [and others]
Bullfrog Films presents ; A production of Earth Image Films for Nova ; WGBH Educational Foundation ; Producer, Christopher McLeod, Robert Lewis ; writer/director, Christopher McLeod ; for NOVA, senior producer, Kathleen Bernhardt
executive producer, Laurie David ; produced by Susan Lester ; produced by Joseph Lovett ; written by Susan Joy Hassol ; segment directors, Maryann De Leo, Ellen Goosenberg Kent ; segment producers, Vibha Bakshi, Rosemary Sykes ; Lovett Productions ; Home Box Office