This Tuesday, FRONTLINE premiered Firestone and the Warlord, a 90-minute film documenting the secret history of Firestone's role in Liberia's civil war. The film is part of a joint investigation by FRONTLINE and ProPublica into the American company's ties to notorious warlord Charles Taylor as he helped launch Liberia into its first civil war.

Journalists Marcela Gaviria (@marcellular), T. Christian Miller (@txtianmiller), and Jonathan Jones (@jonathanrjones)answered your questions about the investigation. A transcript of the discussion follows.