How is it that a neo-Nazi rally targeting Jewish people was allowed to take place on the steps of the New South Wales parliament? Why is it that the same group of people, who want a 'white Australia', could be allowed to form a political party?Today, extremism expert Josh Roose explains the tactics neo-Nazi groups are using to skirt the law and continue to build their brand. He outlines why even in a liberal democracy where extremism is often tolerated, it might be time to think about ways to ban the movement. Featured: Josh Roose, extremism expert and an associate professor in politics at Deakin University