"News" by definition is biased towards both rare and negative events, because common everyday things don't tend to be news. "New contributor gets a very helpful response from Linus" isn't news, and neither is "man spills someone's pint in a pub, they apologize and everything is okay", "woman walks home at night nothing happened", etc.

Quite frankly I consider most of the news to be worse than useless and actively harmful (and news is different from journalism; journalism is great).

(also, I see now I misspelled constructive as "constrictive" in my previous comment do'h facepalm)