Thanks for the additional info.
According to maggief’s post (#40) which was the next one after yours, Carrier Strike Group Three, the Stennis strike group was deployed back to the mid-east.
Not enough info available yet to determine if it was within range of Benghazi during that time-frame of 9/11/12.
If not, then you would be correct that this is probably not related to Benghazi. This will all come out eventually.
Stennis deployed from Bremerton, WA and visited ports in Malaya and Thailand en route to the Arabian Sea.
Thus, it did not pass through the Mediterranean.