Trump's Iran trade threat 'unhelpful' to NZ - Charle Finny

The fallout is continuing from Donald Trump's tweet that anyone doing business with Iran would NOT be doing business with the United States. The US has already re-imposed sanctions against Iran and tougher ones relating to oil exports will begin in November. So what does that mean for New Zealand and its trade with Iran? Charles Finny is a former New Zealand trade negotiator. He talks to Susie Ferguson.