It's not covered cause we don't want to see it.
I think its more of a safety issue than anything. Journalists that report on frontline combat are exposed to the same dangers faced by the people they're covering. There's a reason why the media egos are always in Kabul, or Baghdad, or [insert safest place that's still "credibly" in the combat zone here]. I've seen it with my own eyes. There are some journalists that want to get out there where the action is, but not many. And the ones that do get wounded or killed just like the combatants. There's a reason Ernie Pyle is buried on Ie Shima--that's the price those guys have to be willing to pay to cover the stuff we really need to see. Unfortunately, not many have the stones to do it. Can't say that I blame them really--voluntarily going and getting shot at is something tough to justify to your wife, kids, and even your editor. I have a ton of respect for those that do though.
I remember Forest Sawyer coming aboard my ship during the Kosovo campaign, and he looked like he was on safari, with his pressed and clean khaki bush jacket, cargo pants, and immaculate Danner boots. He'd "been" in Albania for a week prior to coming aboard in supposedly knee deep mud...right. The free-lance guys were the only ones that were going to go ashore with us...