Re: STAR TREK INTO DARKNESS - Grading & Discussion [SPOILERS]
^ I think just having Chekov be a normal redshirt security guard during the pre-Amok Time days makes perfect sense. Especially since he is the security CHIEF during TMP. It stands to reason that the chief of security must be a former security officer.
In labor news: Longshoremen walked off the piers today. Rescue operations are continuing.