Earlier this year, we devoted an hour to Oregon’s troubled Public Employees Retirement System (PERS). At that time, the estimated unfunded liability — the gap between what employers will have to pay out in pensions and the money that’s currently in the system — was $22 billion. Now, it’s more like $27 billion. OPB’s senior political reporter Jeff Mapes fills us in on a controversial bill lawmakers are considering — how it would address the PERS debt and where it falls short.