Unreported World meets the USA's new middle-class homeless: families struggling to hold down jobs that pay so little they're forced to live in tent cities or their cars and receive little help from the government. Reporter Ramita Navai and producer Clancy Chassay begin their journey in Chicago, one of the country's manufacturing centres, which has been hit hard by the effects of the worst financial crisis in decades. St Columbanus church is one of 600 charities across the city that gives out emergency food rations.