information is politics
In politics you can only see the tip of the iceberg. The rest you complete with your intuition and biases.
This is true even if you are a member of a political circle. There is always another circle inside yours or flying right above your head.
The problem gets worse as the society becomes more wired and therefore more susceptible to provocation. As information travels faster, so does misinformation.
Next time you are sitting on your ass sharing or marching on the streets protesting some piece of news, bear in mind that you may be executing someone else's plan.