This episode contains strong language and audio excerpts of violence.About a decade ago, police departments across the United States began equipping their officers with body cameras. The technology was meant to serve as a window into potential police misconduct, but that transparency has often remained elusive.Eric Umansky, an editor at large at ProPublica, explains why body cameras haven’t been the fix that many hoped they would be.Guest: Eric Umansky, an editor at large at ProPublica.Background reading: The Failed Promise of Police Body CamerasFrom ProPublica: 21 Bodycam Videos Caught the NYPD Wrongly Arresting Black Kids on Halloween. Why Can’t the Public See the Footage?For more information on today’s episode, visit nytimes.com/thedaily. Transcripts of each episode will be made available by the next workday.