World´s cyber freedom activists gather in Brazil

Open Source or Free Software is computer software that is open to be modified, shared and distributed freely.  It is seen as an alternative to copyrighted software, which may contain features to spy on users, and restrict what we can do without our knowledge.
While many of us use the internet and software without thinking much about who created it and how it works, there´s a growing cyber freedom movement that´s raising awareness on these isssues. Mike Fox has more from Porto Alegre, Brazil, where thousands recently gathered for the 10th International Forum on Free Software.