Introduction: The Market for Pain -- Tell Them That You Saw Us: Witnessing Docu-verbatim Memory -- The Witness as Commodity: Autoperforming Memory -- The Commissioned Witness, Theatre, and Truth -- The Immaterial Labor of Listening: Presence, Absence, Failure, and the Commodification of the Witness -- Consumers or Witnesses: Site-Specific Performance -- Conclusion: Activism in the Marketplace.