I've noticed over the years that the best writers are those who read a lot and write about what they know.
Sometimes you know things by experience and sometimes you do the research or the kind of investigative journalism that makes you an expert in the process. Either way, the end product is better when what you're commenting on is within your realm of understanding.
So I tend to wince a bit when the average blogger starts posting away when a big news story hits. I'm totally fine with it if they are just stating their opinion or perspective, but more often I find folks stepping into the spin doctor role and telling me how I should feel about it.
Or worse...how God feels about it.
There's been a lot of posting about the death of Osama bin Laden. Political affiliations aside, the most disturbing posts have been self-appointed experts claiming to speak on God's behalf. So it was really refreshing when I came across this post http://www.desiringgod.org/blog/posts/is-god-glad-osama-bin-ladens-dead?utm_source=Desiring+God&utm_medium=email&utm_campaign=86e29d6ab9-RSS_EMAIL_CAMPAIGN
I couldn't have said it better myself.