Should neo-Nazis be banned from protesting?

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