A former Finance Minister's discussing the Superannuation age in the wake of an alarming Treasury report. 

Treasury's long term fiscal statement notes the importance of responding to challenges with an ageing population. 

It suggests the cost of NZ Super could be kept stable by steadily increasing the age of eligibility, requiring it to rise to 72, by 2065. 

Steven Joyce told Kerre Woodham Superannuation policy gets more urgent every time it's left alone. 

He believes the age should be getting gradually older as we live longer, and says he had a plan to lift it with 20 years notice before doing so. 

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