Section 1. Neither slavery nor involuntary servitude, except as a punishment for crime whereof the party shall have been duly convicted, shall exist within the United States, or any place subject to their jurisdiction.
Section 2. Congress shall have power to enforce this article by appropriate legislation.
I say make them labor yet create nothing of value. Perhaps make them dig holes and then fill them up again? Let em stew on the value of labor, and what it means to use force to take a persons liberty and steal the products of their labor.