A few days ago, I got an email from Sarah Wenger, with an infographic she developed about the power of online people. There is a line that says "Social media is becoming the new major media". This is basically right, I think we are all aware that Facebook and Twitter (for example) are the main way for the diffusion of news. Is this good or bad? This question, obiously, is stupid. Tecnology is not good and not bad: tecnology is just an instrument. The use people do of tecnology can be positive or negative.
The problem is that social networks does not have an "editorial staff" that checks news. This is the reason of many fake news (in italian we call them "bufale", like the mozzarella). Sure, also newspaper and televisions are not "super partes", but usually they are a little more reliable. Basically, an ill-intentioned person could use social networks to spread news to control what people think. In Italy, we seen something like this some months ago, when Facebook was filled with fake news about new incredible taxes (I remember a "tax on dogs"): those news were made to put the public against new laws the Government made to fight tax evasion.
The freedom of internet can be used to control people. And there is no tecnical solution, since the problem does not came from the tecnology: free software can not help in this situation. The only solution is that people must use the brain.
This is the reason for which I think in the primary school children should be taught to understand what is true and what is not, without believing at anything they read on the internet.