The MBTA's pension problem

The MBTA is facing yet another financial challenge, this time in the form of its pension program. According to an arbitration document obtained by WBUR, at its current trajectory, pension expenses could make the agency 'insolvent' by 2038. WBUR Transportation Reporter Andrea Perdomo-Hernandez joins The Common explore how the MBTA got to this point, and what this could mean for its financial future.