As for whether monopolies should be broken up or not. Monopolies are created BECAUSE of government intervention, not inspite of government intervention. So think about it before you want the government to do even more for you.
Secondly, if there are monopolies, the most effective way to destroy a monopoly is to create competition. Why would government funding go to huge networks like PBS and NPR is beyond me.
And since we are in Argentina, if it wasn't for the governments over the decades, Clarin wouldn't be where it is right now. The governments should stop concerning themselves with pulling new laws out of their asses to attack a monopoly. The governments should, if they really are against monopolies, be helping prop up competition, real competition not government puppets, and that will eventually weaken any mammoth of a business.
Lastly, Clarin is not a monopoly. Study Economics 101 people. The situation in Argentina resembles an oligopoly where a few dominate the industry but it is most certainly not a monopoly. It seems like the term "monopoly" is now thrown around freely at any corporation or business people don't like, kind of like "Hitler" is thrown around at individuals people don't like.
EDIT: Before I am taken out of context, I am not advocating more government. What I am saying is that if the people really want the government's grubby hand to help them against mammoth media organizations, then it is better to help start up competitve business, rather than try to break up a monopoly or an oligopoly. If the government does the latter, then you're left with a vacuum, that gets filled ONCE AGAIN with a similar structure.