Continuity mistake: When Tony and Ziva discover the hiding place of Amanda, the position of the dead body's extended hand and the puddle of blood change. (00:13:40)
Continuity mistake: In the scene where Tony and Ziva discover the dead body in Amanda's hiding place the dead body's extended arm is lying on the rug on the floor, and is left that way when Gibbs tell them to leave, yet in the next scene when Ducky shows Gibbs a picture of the dead body, the rug beneath the extended arm has disappeared. (00:13:45)
Continuity mistake: During the scene where Lee is being guarded by Tim and Tiny in the conference room, the coffee pots, stir sticks, cups and sugar bowls behind Lee change positions throughout the scene. (00:17:00)
Chosen answer: It is never stated, however she must have been there several years if she is on presidential detail.