Debtors prisons were banned in the US in the 1830's. But almost two centuries later, the criminal legal system is still punishing people for being poor. This week, we talk to Sara Zampierin, a Staff Attorney at the Southern Poverty Law Center. She will lay out for us an array of constitutionally and morally questionable practices that trap poor people in the criminal legal system, including excessive cash bail, onerous fines and fees, and self-interested private probation services.