The Soldier Video

Is this video authentic? It has been making the rounds for a while and from my own initial, cursory look I can't find any authentification. To what extent would it matter? Yes, there are certain lines between truth & fiction, of course. But if this is staged, and especially if its anonymous YouTube posting do not indicate otherwise (but simply leave the matter ambiguous) would this not be a case of fiction "arriving at" truth? Former soldier Stan Goff says this rings his "Reality Bells." If it rings true but is a recreation, what role or value does it have for the progressive movement? Or for those all over the world--inside America and out--who would see it? Has it been inspiring outrage outside of the radical or antiwar blogosphere? (Has it been inspiring that much outrage inside it?) At the forum Rap Godfathers there's a link to the video followed by discussion that is hardly rosy about the role that troops play in US militarism ...