![In this Aug. 18, 2011 photo, a prison guard rides a horse alongside prisoners as they return from farm work detail at the Louisiana State Penitentiary in Angola, La.](https://imagenes.elpais.com/resizer/v2/JU27YBVHBJDAJOKJG25PDP5J4Q.jpg?auth=3515ead64af83f45f9977ce13949130623305d69287e373cfe9dffeb909c3371&width=414&height=233&smart=true)
Prisoners in the US are part of a hidden workforce linked to hundreds of popular food brands
Enshrined in the Constitution by the 13th Amendment, slavery and involuntary servitude are banned – except as punishment for a crime
Enshrined in the Constitution by the 13th Amendment, slavery and involuntary servitude are banned – except as punishment for a crime
A nonprofit that advocates for sustainability said an analysis of 72 companies found that few are close to reaching targets the nonprofit set for 2030 in several areas