Governments are more careful on the analysis of social media and the vast amount of information which they hold. Intelligence agencies have learned that Social networks and forums are exceptional instruments for information gathering and to measure the global sentiment on every kind of argument, political as social. The Federal Bureau of Investigation is interested to a backdoor for government surveillance, for this reason it is collaborating with companies like Microsoft, Google and Yahoo. Despite the high interest in social media some experts show very cautious, its the case of Craig Parisot a firm specialized in data mining innovations.”]