S-2: You are correct, it was the incident in May 2007 that I pointed to as treachery by the Frontier Corps guard. I read about it earlier this year, hence the confusion.
Brig Ray: Did you mean links about the Pakistani Frontier Corps, or the incident? If it was the latter, I should have known better

, as one of the article you posted recently referred to it:
Targeting the Khyber Pass: The Taliban’s Spring Offensive