Two points:
1) There were US citizens and even soldiers in Georgia. Just because a passport was found at the site of some fighting does not mean that the citizen
was there at the time of the fighting.
2) If there was a US citizen fighting, they most likely would have been a spook and wouldn't be carrying a passport.
Oh I know. I've read a LOT about this lately, because it affects me, personally and directly - we would like to adopt again, from Russia. Sour relations could spell doom for any effort we begin, including all the money we put into it.
I've read cases where U.S. citizens were actually completing adoptions near the region.
I also know that unless you get shot, chances are good you're not LEAVING Russia without a passport. Legitimate visitors with passports and visas still have to notify the Russian government of their whereabouts, I believe every three days - or at least, that's what we had to do.
It's unlikely that a commando would have normal U.S. credentials to incriminate him - more likely, it came from an ordinary citizen.
I just know a lot of Russians do read Russia Today.