NAB trustees hit with class action for 'mismanaging' retirement savings

National Australia Bank's superannuation trustees have been hit with a new class action for allegedly ripping off more than 330,000 clients by failing to move them into lower cost default products. 

Plaintiff law firm Maurice Blackburn filed the case in the Victorian Supreme Court on Wednesday, claiming that two of NAB's super trustees breached their duties and failed to act in the best interests of clients. 

Maurice Blackburn head of class actions speaks with ABC's Peter Ryan.