Millions of Americans can’t afford rent and only a quarter of those who need government help get it. What happens to everyone else? For many, it means they live in squalor. But figuring out who’s responsible is harder than you think. In this episode of the FRONTLINE DISPATCH, NPR correspondent Laura Sullivan heads to Dallas, where the city, low-income residents and a prominent landlord sometimes described as a slumlord, become the moving pieces in a century-and-a-half old problem.

This episode was done in collaboration with NPR.