Gangs in Brazil

I was reading an article about the gangs in Brazil and the difficulty that they are giving to Brazilian authorities. It seems that just recently, ten gang members were shot dead in a violent exchange between authorities and members. This was right after authorities revealed a scheme of the gang members to encourage and start attacks against Brazilian Police Officers in outlying towns. These members of the First Capital Command gang were upset over the imprisonement of their leaders. With gangs being such a problem throughout Central America this same scene has happened frequently. I wonder if problems will persist in Brazil and how the government can fight these problems.