Facial-recognition software is leading to wrongful arrests, but the secrecy around the use of the technology makes it hard to know just how often it happens. So far, there are at least five known cases in which police use of facial-recognition algorithms have led to mistaken-identity arrests in the United States. All five were Black men. Nate Freed Wessler is part of the team representing one of those men in a case against the Detroit Police Department. He’s also a deputy director of the American Civil Liberties Union’s Speech, Privacy, and Technology project. Marketplace’s Meghan McCarty Carino spoke with Wessler about facial-recognition technology and why it leads to these outcomes.