Factual error: The ferry carrying Ziva and Tony to the aircraft carrier should have the Italian merchant flag, but it has the national one (this flag hasn't got the shield drawn in the middle).
Factual error: Gibbs has a conversation with the father of the victim at the Tomb of the Unknown Soldier. Something that would not be allowed by the guards of the Tomb. (00:36:50)
Answer: I hadn't seen the backdoor pilots yet but while it wasn't explicitly stated, at least onscreen, I heard somewhere Vivian got either fired from NCIS due to jeopardizing a case, got resigned from the agency, or transferred to the FBI.
Raykvega423