The US Marshals Service detains tens of thousands of people every day in jails across the United States, and thanks to President Trump’s “zero tolerance” immigration policies, that number is approaching historic highs. The Marshals are supposed to safeguard pre-trial detainees, but journalist Seth Freed Wessler's reporting reveals that America’s oldest law enforcement agency is suffering from a massive dereliction of duty—telling the story of widespread neglect, and deaths inside a system plagued by a lack of accountability. Seth teamed up with the award-winning radio producers behind NPR's Latino USA to produce this radio documentary based on his explosive reporting. For the full story for Mother Jones, reported in partnership with Type Investigations, visit http://www.motherjones.com/marshals.