You aren't supposed to know.
Not exactly good for the country's view of itself.
You need to see it.
Besides, that's what slasher movies are for.
You think soldiers don't want the folks back home to know what they have to deal with? Republicans and war hawks don't actually want to see that stuff in, you know, real life.
It is, perhaps, the most patriotic thing you can do.
And true poison to the pseudo-noble idea of just what the hell it is we think we're doing by launching such brutal and unwinnable wars in the first place.
No night shots of Marines in bitchin' night-vision goggles bustin' down the door of some palace and then cheering.