I make part of my living debunking conspiracy theories. Nevertheless, we must acknowledge that real conspiracies exist, and this hypothesis has an excellent chance of being one of them. It carries no cosmic implications (controlled media, etc.), it involves only a few people (no Moon landing hoax, which would have required a million co-conspirators at the very least), and it passes the test of Occam's Razor, the common-sense principle that the simplest explanation that accounts for the facts is probably the right one.
In this case, we are working from a truly extrordinary set of facts, Moore's admitted relationship with Berg being the most remarkable.
The bottom-line: A young adventurer whom Moore has acknowledged knowing disappeared in Iraq at almost the same time Moore boasted of an imminent revelation from "secret agents" operating there. This young adventurer subsequently turned up dead and Moore has had no more to say about his secret agents.
Another detail: Moore claimed that his cameramen/reporters were working in Iraq "unbeknownst to the Army." Since the Army is aware of the affiliations of all declared journalists, this would require some sort of non-journalistic cover. A telecom contractor would be perfect.
I am familiar with your writings in the anti-crackpot-theory arena in this forum, and so your assignment of credibility to this theory holds substantial weight. My sincere appreciation for your acknowledgement.