Continuity mistake: During the interrogation, DiNozzo holds up the petty officer's ID vertically and asks a question. When the shot changes, DiNozzo is holding it lower and now horizontally. (00:09:05)
Continuity mistake: When Tony wakes Ziva up, he grabs her wrist, and her fist is clenched in one shot and open in the next before returning to the closed position. (00:22:00)
Continuity mistake: When DiNozzo and Gibbs are trying to work out who the man in the hat is, Tony has the clicker up by his chest in one shot and lowered in the following shot. (00:27:30)
Visible crew/equipment: When talking to Ziva in the car, Eli's glasses reflect a light screen in his glasses. (00:29:10)
Visible crew/equipment: When Ziva and Eli are talking, a camera crew can be seen in Eli's glasses. (00:30:10)
Revealing mistake: When Ziva is hugging her dead father, you can see him breathing. (00:36:00)
Chosen answer: It is never stated, however she must have been there several years if she is on presidential detail.