The biggest source of bias in the media is not related to feeding people false information, it's about misdirection. If you have two articles A and B, where A

The biggest source of bias in the media is not related to feeding people false information, it's about misdirection. If you have two articles A and B, where A is more important than B, sometimes the media outlet will deliberately choose to publish B instead of A if it matches their philosophy better (even though it's less important). If the news outlet shows each reader 5 articles of type B for every 1 article of type A - Then they are manipulating the reader's opinion to become biased towards type B thinking (by focusing their attention on less important stuff). It doesn't matter if all articles are 100% accurate, your perception is being affected through the exposure imbalance; through priming. I think that's what happened with the Clinton/Trump fiasco; "Hillary media" was publishing more articles about Trump's "sexual deviance and unstable character" while "Trump media" was publishing more articles about Hillary's "deception and murky financial schemes".