A class-action lawsuit filed last week alleges 13 cities in St. Louis County, Missouri put people behind bars because they couldn't afford to pay court fines. The fines included tickets for minor offenses like traffic violations. The Arch City Defenders is the nonprofit law firm behind the suit. The group compares the situation in Missouri to a modern day "debtors' prison." It is illegal to jail people because they can't pay court costs, but it continues to happen across the country, including