Just about anyone diagnosed with kidney failure can get their kidney dialysis fully covered under Medicare. So why are taxpayers paying $20 billion a year for a program that lets 25% of the patients die within a year, the worst fatality rate of the first world? Why do only two chains run 2/3 of all clinics? And why won’t the government release important data that could improve the quality of care? An investigation in The Atlantic probes this issue in depth.