Prison labor is considered Made In America

[Cerridwen]

6. According to the article linked in the OP

"If they refuse to work, they are moved to disciplinary housing and lose canteen privileges" along with "good time credit that reduces their sentences,” reports Chris Levister.

And in another part of the country from another point in the article

In the most extreme cases, we are even witnessing the reemergence of the chain gang. In Arizona, the self-proclaimed “toughest sheriff in America,” Joe Arpaio, requires his Maricopa County inmates to enroll in chain gangs to perform various community services or face lockdown with three other inmates in an 8-by-12-foot cell, for 23 hours a day. In June of this year, Arpaio started a female-only chain gang made up of women convicted of driving under the influence. In a press release he boasted that the inmates would be wearing pink T-shirts emblazoned with messages about drinking and driving.