[megablast]

This is incredibly easy to prove. Count all the good stories that have happened, and all the bad. Compare the ratios to different publications.

Of course, it is a lot harder to prove if you are saying something different than the truth.

[wtbob]

> This is incredibly easy to prove. Count all the good stories that have happened, and all the bad. Compare the ratios to different publications.

I think that's likely to be a lot more difficult than you think: how does an independent observer know what the count of good and bad events is, rather than the count of good & bad published events? The trouble is that if an event isn't published, it's practically invisible to an observer.

This is a related issue to the fact that many sensational crimes are less common today, but perceived to be more common due to over-coverage in the media.