Continuity mistake: When walking down the stairs at NCIS discussing the feather, the evidence bag Kate has switches hands instantly for a couple of seconds. (00:28:30)
Continuity mistake: When talking to the warehouse manager, the manager has a clipboard with pink post it notes on. Watch closely and you will see the clipboard is constantly facing different directions as indicated by the pink post it notes. It some shots it's facing away from the manager, and in others it's facing the manager. (00:05:05)
Chosen answer: It is never stated, however she must have been there several years if she is on presidential detail.