There's real concern from a former Green MP over how openly people talk about committing violence. 

A new Taxpayers' Union-Curia poll shows one in four Te Pāti Māori voters and one in five ACT voters agree Kiwis may have to resort to violence to get the country back on track. 

The younger generation are more likely to agree, and they're less likely to have friends with differing political views. 

Catherine Delahunty says understanding the causes is important. 

"I think it's a sign of deepening inequality right now, that some people are really, really frustrated and feel really excluded from our society."

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