Argentine hooliangs are at least wise enough to beat up anybody who pulls out a camera to film/fotograph them while rioting. I guess canadian police already got more than a few of those on the vancouver fotos.
Anyway, the barras form a part of argentine football for many years already and I think that as long as the villas keep growing, this won't change. Apart from that, labour union leaders, politicians, etc. actually need them to do their dirty work. If you work in the HQ of a "sindicato" you actually have to expect that once in a while a group of barrabravas comes to your office to intimidate your boss and create some disorder. At least in some of them.
Anyway, the barras form a part of argentine football for many years already and I think that as long as the villas keep growing, this won't change. Apart from that, labour union leaders, politicians, etc. actually need them to do their dirty work. If you work in the HQ of a "sindicato" you actually have to expect that once in a while a group of barrabravas comes to your office to intimidate your boss and create some disorder. At least in some of them.