Campus battlegrounds: Who's behind the fighting at US universities?

On university campuses across the United States, alt-right and neo-Nazi protesters have been confronted by counter-protesters and by the radical anti-fascist groups known as antifa. Who are the people behind the violence - and how bad could it get?

Video journalist: Natalia Zuo

Producer: Anisa Subedar

Reporter: Mike Wendling, external

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