Security guard beaten in Chicago subway

A security guard assigned to the Chicago subway's red line was violently assaulted by several individuals. Despite his presence to ensure a minimum of calm in an area known for its tensions, he was clearly not respected. We see him trying to manage the situation, but it quickly degenerates. He is hit without anyone intervening. The video raises questions about thereal usefulness of transportsecurity guards if their authority is ignored and their safety even threatened.