Continuity mistake: At the naval base Gibbs is talking about the Marine taking his bike up into the mountains and blasting country music. The person he is talking to has their arms down by their side until the camera changes. They are then behind his back. (00:22:00)
Continuity mistake: DiNozzo goes onto eBay to check the feedback of the dead officer. The feedback goes from a score of 1 with no star, to 87 with a blue star in the click of a button. (00:10:30)
Continuity mistake: When the woman is walking with Gibbs at the Naval base, she is doing her coat up in one shot, then has her hands in her pocket in the next. (00:08:15)
Continuity mistake: When Gibbs arrives at the Naval base in Orlando, we see the woman in a white coat and the coat is open at the bottom (she is doing the buttons up from top to bottom) and billowing In the Wind. Camera cuts and the coat is now perfectly still and closed at the bottom. (00:08:15)
Chosen answer: It is never stated, however she must have been there several years if she is on presidential detail.