Yes! This is another area thats not on the radar screen......or at least no one really is talking about.
....yet.
Here's a link to the CIA World Factbook on Argentina, Brazil, Paraguay. Under the heading "Transnational Issues", read the next to last paragraph titled "Disputes - International" for each country.
The "harbors Islamist militants" phrase has been listed for a couple years.
People are talking about the insurgency. The problem is getting our elected officials to listen. This is a cancer. It's in our backyard, not half way around the world. Even more unsettling to me is this nagging sense that the number of Islamic militants within our own borders has gone unchecked.
CIA World Factbook Links:
Argentina: http://cia.gov/cia/publications/factbook/geos/ar.html
Brazil: http://cia.gov/cia/publications/factbook/geos/br.html
Paraguay: http://cia.gov/cia/publications/factbook/geos/pa.html