Equivocator You seem to be entirely missing the point which Michael Yon makes. How is OPSEC breached if the Taliban already know that they have successfully downed a Chinook and Yon is merely telling our side the truth of the matter?
The balance to be struck is between providing truthful and accurate reports but at the same time not aiding the enemy by the nature of those reports. How could they be aiding the enemy? Quite simple really, if you understand the value of Battle Damage Assessment (BDA). suddenly the bad guys are getting confirmation of weapons effects and ranges, things they might have suspected before, but here we are confirming it in the name of good journalism. I don't belive Michael Yon is guilty of this here, but others have.
Not everything is a Government conspiracy to keep the public in the dark, but there are aspects to reporting warfighting that are best kept vague at the very least.