One of the reasons I think americans rarely riot is because the players do it for us. basebrawls, hockeyfights and then American football which is pretty damn violent. Remeber this story takes place in Colombia. The country with one of the highest death rates of any country in the world,that is not at war. Beautiful country,but I would be scared to go.
Figures... a fan is stabbed and thrown from the upper deck, but their biggest concern is, how the hell did someone get on the field to punch a referee. Got to protect those referees. It's all David Stern's fault, right Max?