Here is the problem:
Bad news is more interesting than good news. When people hear bad news it is a call to action that something needs to be done to stop it. Good news means you should just continue on and do what you have been doing.
Now we get flooded with Bad News and that makes news junkies become paranoid and thinking the world is about to end, and this over extradition of the problem will cause them to try to do drastic action to try to fix it. Tea Party, Occupy Movement, Radical groups.
Countries like China and North Korea, tries to give a bunch of good news, as a way to pacify the public. There is no interest in roping people in to watch the news every hour. So they do good news, to try to keep people passive and do what they already do. Ignoring real issues that are going on, causing the culture to stagnate.
We really need a happy middle. Where we know what important is going on, without it seeming like the End of the World.