I have no idea of the level of credibility of this person
http://www.ifatca.org/organisation/president.htm
or his organisation but he was interviewd on the radio here this morning. He said they were very worried about the state of ATC in Argentina and particularly about the pressure - in the form of suspensions and administrative proceedures - being brought to bear on controllers in order to get them to keep their mouths shut about what is really going on.