I guess the argument would be regarding this part:
except as a punishment for crime whereof the party shall have been duly convicted
....because as long as there are oppressive folks in a position of leadership, they will put laws on the books that enable them to loophole people into slavery. I would argue for dominion over one's own body to be part of the constitution, including, as Seeker5 mentioned, use of drugs.
I haven't read the Constitution with an eye out for that. Is there anything in there that guarantees Americans dominion over our own body?