I fully agree that local and contextual is real journalism...not parroting, or just reporting...think tweets by twits. In 99% of cases tweets are not newsworthy, regardless of who is the twit(ter). And of course lies as tweets might rise to news just to create a clear context for asininity...but once made, you're done. Of course tweets have a role as quick communication. But not as news. Real reality, just the facts, verifiable facts, demonstrable facts. But true context matters too and here  is the role for interpretation, a sense of judgement that rests on trust and builds through veracity. So if you say something untrue, not even a lie, you lose credibility for all time unless you own up. Because we need help making sense of things and this is the role of a great journalist.