Continuity mistake: Ziva is tasked to go outside to the FBI car and she goes upstairs passing a wooden support. Camera cuts and she passes the support again. (00:20:35)
Visible crew/equipment: At the very start, as Tony walks past Ziva, a green tape marker is visible on the floor by her. (00:00:10)
Chosen answer: "Policing your brass", means to pick up your expended shell casings, after firing your rifle, or pistol.
pross79