Visible crew/equipment: When Nasser is brought to the interrogation room he raises his handcuffed arms and Gibbs nods no to removing them. In the next closeup of Nasser's handcuffs we can see the black taped mat on the floor (also visible in a following shot) which doesn't exist in overhead shots, then as the camera tilts up the reflection of the camera operator (wearing shorts) and camera are visible in the mirror. (00:16:30)
Continuity mistake: When Nasser is brought to the interrogation room to meet with Agent Cassidy, at first the handcuff is around Nasser's left wrist with its single metal bar facing out, but when Cassidy says, "Now please," Nasser's handcuff is on the opposite way, with its double bar facing out. (00:35:50)
Continuity mistake: When Abbi asks Gibbs to smell the shirt, the way she holds the shirt changes instantly. (00:04:05)
Chosen answer: It is never stated, however she must have been there several years if she is on presidential detail.