It's just a tool...
for those in power to control and supervise the people. The people should be the ultimate source of power in a democracy, so there should be nothing to worry, right? Except, that the people are not informed and the authorities show great willingness to use all tools at hand to manipulate public opinion. The elected government and the unelected members of the administration create secret tools to control their populace when really the populace should control them.