Other mistake: When Director Vance's wife shoots Kai from behind, the bullet passes through her, yet doesn't strike Vance, who is standing directly in front of the North Korean.
Power Down - S7-E8
Continuity mistake: When the team finds the abandoned car from the robbery, and Tony notices the blood trail, he is initially kneeling down, then standing up. He then kneels down a second time, and then is instantly standing up again. (00:21:25)
Child's Play - S7-E9
Continuity mistake: The way Ducky holds the Dog Tags at the start changes between shots. (00:04:24)
Child's Play - S7-E9
Continuity mistake: When we see the girl playing checkers, the position of the pieces on the board are constantly changing between shots without being touched. (00:29:28)
Child's Play - S7-E9
Continuity mistake: The piles of black pieces change from 2 columns to 3 without being touched. (00:29:55)
Visible crew/equipment: As Ziva runs into the hotel worker in the lobby, a boom mic drops into view very quickly. (00:13:39)
Visible crew/equipment: As Gibbs introduces himself to DiNozzo Snr, the edge of a camera can briefly be seen in the mirror behind them on the right hand side of the screen. (00:14:45)
Continuity mistake: The amount of foam atop Ton'y beer when talking to his dad is constantly changing. (00:18:20)
Visible crew/equipment: When McGee tells Abby to show him what she's got, as they walk through the doorway the reflections of crew members are visible on the glass. (00:25:30)
Factual error: The commercial 747 landing in Washington from France is the president's plane Air Force One, not a regular passenger jet. It's actually reused footage from the film Air Force One.
Chosen answer: It is never stated, however she must have been there several years if she is on presidential detail.