Could you provide a link to the record clarification?
If this is all it is, there is no sense looking into it.
But, others disagree with you on this...
I have looked over the scans of the original documents, and as a former legal and administrative officer I see absolutely nothing out of place.
http://www.johnkerry.com/about/Bronze_Star.pdf
http://www.johnkerry.com/about/Silver_Star.pdf
I honestly believe that as he came to prominence, perhaps as he prepared for his senate candidacy, he had someone review his records. They noticed an ommision, and then asked for a correction/supplement to his record. Additionally, the titular awarding authority for the Bronze Star (and Silver Star) is the Secretary. It could very well be that Mr. Kerry never received the certificates signed by the sitting Secretary, and had asked that duplicate certificates be issued with the appropriate awarding signature. Again, this is something that happens rather regularly.
Was it a political calculation? The dates indicate that it probably was.
Was it a sham? Is there a conspiracy? From what I see; no.
Regardless. my point remains the same: this is a LOSING battle. There are MUCH MORE IMPORTANT issues. Disliking the man, and not trusting the man, is no reason to look for scandals where none exist. Attempts to discredit his military service, whether valid or not, at this point will have no affect.
How about focusing some of this energy in getting the word out about his very real and very well documented national security record? His actions, votes, and statements as a Senator are far more relevant to this election than anything he did, or did not do, back in 1970.
Alas, I feel my comments are falling on deaf ears.