Why does the US Constitution's 13th amendment specifically allow prison labor? Was there any fear that this would lead to the continued de facto slavery that resulted?

by 9XsOeLc0SdGjbqbedCnt
KeitaSutra

I can't answer the question but I can try to help and provide some context. I recall a video on C-SPAN from a few months ago that touched somewhat on this. It's a video so I hope that's allowed and hope this helps.

The relevant portion begins at about 17:10: Author Discussion on the US Prison System

Cheers!