Because--and this may be shocking to you--things that don't happen right in front of your doorstep may still have application to you, your neighbors, your community, and humanity, as a whole.
Really? You mean, we live in a whole big world and things far away from me might be important?! Well, that changes everything...
What it doesn't change is a) why Doom specifically should care that this happened, and b) what being informed about the goings on in the world has to do with my post on why it makes sense that Doom wouldn't have heard anything about Paterno/Sandusky/PSU if he doesn't watch the news and gets the vast majority of his news coverage from Facebook. I wasn't arguing that it was intelligent, or that it made sense to do that, just that if one does do that it makes sense that they'd have a limited purview. Geez.
Personally, I'm a news junkie, have been since I was 11 (that'd be 20 years ago). Even though I think my local news channels suck, I still watch about 6 hours of their coverage per week, plus the 8 to 10 hours of news coverage I consume in my car on my way to and from work, plus various news website reading I do while at work and at home. I probably spend more time consuming news footage than I do any other activity aside from working, gaming, and sleeping. In fact, I frequently read and/or listen to news while gaming, and since I have a CNN app for my phone and my phone is also my alarm clock, it's pretty normal for me to wake up, turn off the alarm clock, and check for breaking news headlines before even getting out of bed. Hell, 90% of my twitter feed is from news organizations and reporters. I pay attention to local news, national news, world news, sports news, business news, legal news, gaming news, entertainment news (still don't consider which celeb is doing what and/or whom to be news though), and misc. news. So if you're going to preach about paying attention to what's going on outside of just your local area, turn around - this is the choir section, you want the pews.