The Phoenix pay system was supposed to save taxpayers millions of dollars a year by automating and simplifying payroll for federal workers. Instead, it was riddled with problems. For years federal workers have dealt with underpayment, wrong tax forms, and other problems that got so bad, some workers ended up broke. Meanwhile, payroll costs continue to balloon as the government tries to fix the program — and look for a replacement. CBC's parliamentary reporter Hannah Thibedeau joins us to explain how we ended up here.