Visible crew/equipment: When the guard surprises Rick and Kimberly in the shed, you can see an arm and parts of the camera at the left side right behind Rick when the guard leaves. (Widescreen DVD). (00:23:20)
Continuity mistake: When Senator Palmer is binding his tie in front of the mirror, he pulls the broad part of it completely through the loop of the tie around his neck. Than it cuts to a close-up and the broad part's part-way through the loop again. (00:30:05)
Answer: According to Jack in season 5, Nina was "deep cover" before the pair ever met, so it's safe to assume she was recruited before she joined CTU. As for what her primary mission was, who knows? Perhaps it was to gather sensitive intel and pass it on to her superiors. Given that she worked for an intelligence agency, it's not a stretch. Or perhaps we may find out in season seven.
Cubs Fan ★