Kill a Stoat and Save New Zealand?

Updated at 4:20 pm on 30 September 2014

Kim Hill and a panel of experts consider Sir Paul Callaghan's final challenge - to make New Zealand pest free. How realistic is this vision? Will New Zealanders rise to the challenge? What will it cost? And would it be worth the expense?

From Talking Heads

This story was broadcast on Talking Heads, Sunday 5 August 2012

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