Yes. I believe inmates should be required to work for their food! Inmates have long held positions inside the prison, but this labor output doesn't even come close to being able to compare with the billions of tax dollars being used every year to house and feed them. Inmates should be able to work, but I would think twice about how much they are paid!
Inmates should be allowed to work, and they should be paid for their work. Quite often, prisoners are often used a cheap or free source of labor. No matter what they did to end up in jail, prisoners should not be exploited in a new form of slave labor. That is just wrong.