Is the New Zealand terror attack work of a lone wolf, or signs of growing extremist views?

New Zealand is a largely peaceful country, where we don't often see signs of the kind of extremism we've just witnessed.

But the internet, with all its echo chambers, and the ability for anyone to live-stream whatever they like, is changing the way terror attacks are planned, they way they're carried out, and the way in which extremism manifests itself.

Guest: Prof Max Abrahms

Terrorism Expert from Northeastern University in Boston

Author of a new book called Rules for Rebels: The Science of Victory in Militant History

New Zealand is a largely peaceful country, where we don't often see signs of the kind of extremism we've just witnessed.

But the internet, with all its echo chambers, and the ability for anyone to live-stream whatever they like, is changing the way terror attacks are planned, they way they're carried out, and the way in which extremism manifests itself.

Guest: Prof Max Abrahms

Terrorism Expert from Northeastern University in Boston

Author of a new book called Rules for Rebels: The Science of Victory in Militant History