And do you really believe they post lies. Did the police shoot that guy or not?
That's just about sums up one of your main mental failings. It's always all or nothing, black and white with you. Straight away your conclusion if they tell lies is that they must always tell lies, and if they tell the truth once they will always tell the truth.
That's before we get into shading, deceit through omission and a bunch of other common practices that anyone commenting on news will consciously and unconsciously use.
Very odd way to run a mind.