Last fall WBUR Investigations Correspondent Todd Wallack joined The Common after he published an investigation into Massachusetts’ public housing waitlist system. In the investigation, he found that despite the state being in a record housing shortage, almost 2,300 state-funded units were sitting vacant across the Commonwealth, sometimes for years. In the aftermath of the investigation, the state announced it would make a 90-day push to significantly reduce the number of empty units. Six months later, only 72 more units have been filled and more than 180,000 people remain on the waitlist. Today on The Common Todd joins us again to provide a look into Massachusetts' public housing waitlist system, and how it is and isn't working for housing authorities and potential tenants alike. Greater Boston’s daily podcast where news and culture meet.