Continuity mistake: At the start just before the house light comes on, we see a shot of two of the pranksters from the portable camcorder's POV. In this shot, the two are close together. When the shot goes back to normal however, the two are further apart. (00:00:25)
Continuity mistake: At the start, the kids hide behind the pickup truck and the guy on the end has the camera. When the shot changes the guy in the middle has it. (00:00:30)
Continuity mistake: The way Tony holds his phone in the scene at the start changes changes between shots instantly. (00:02:00)
Continuity mistake: When Ducky and Jimmy walk towards the car at the start, the local LEO lifts the tape for them to walk under. However the shot changes while they are walking under, the tape is instantly lowered, and they are beyond it. (00:03:15)
Continuity mistake: When Ducky and Palmer determine that LCPL Korby was frozen to death, Ducky's grip on his forceps changes between shots. (00:06:15)
Continuity mistake: When Gibbs is walking over to the Marines who are doing pull ups outside, there is an instructor in a yellow top who disappears instantly. (00:19:50)
Continuity mistake: When we see the Marines doing pull ups, the middle Marine is holding on at arm's length. Camera cuts and he is suddenly in the middle of a pull up. (00:20:00)
Continuity mistake: 7.05 - Code of Conduct. Gibbs and Tony go to question a marine who is exercising. The sweat stains on his shirt get much bigger and smaller, as well as change shapes, throughout the interview. (00:20:35)
Continuity mistake: Abby calls Palmer a genius for his suggestion about using a thermos. When she does her hands are lowered. Camera cuts and now one is raised up. (00:25:00)
Continuity mistake: When Abby offers Palmer a sip of her Caf-POW!, after he helps determine how their victim was poisoned, the cup switches hands between shots. (00:26:20)
Continuity mistake: When Singer is bringing the flowers to the widow, the way the flowers are held changes between shots. Notice the actual flowers have rotated and a card is now visible on them. (00:27:05)
Continuity mistake: When Ziva mentions the unit not knowing about the code red, two extras start walking past her. Camera changes to another view that the extras should be in, but they have gone. (00:28:00)
Continuity mistake: Gibbs puts 3 pieces of paper down in the interrogation room and the middle one is out of alignment. Camera changes and now all the bits of paper are lined up. (00:30:00)
Chosen answer: It is never stated, however she must have been there several years if she is on presidential detail.