How an inefficient waitlist system for state-funded housing contributes to vacancies despite a dire need

The number of families in need of shelter in Massachusetts has almost doubled in the past year. Yet an investigation by WBUR and ProPublica finds many state-subsidized apartments are sitting empty.

WBUR’s Todd Wallack explores how the state’s waitlist system has contributed to the vacancies — and how it affects people who need housing the most.