Something happened. It happened right before we started being fed a mass shooting scenario every 2 weeks or so. What was it?

foreignpolicy.com/2013/07/14/u-s-repeals-propaganda-ban-spreads-government-made-news-to-americans/
Why is it that your favorite, most trusted news source never told you about this, and if they did cover it, why was it just a one-time blip, never to be covered again? Is it because this is an irrelevant news story or is it for some other reason?
www.youtube.com/watch?v=U35Xsd2axJs
 
h/t naturalproducer