Question: What exactly does NOC mean? It's never established in the movie.
Question: After stealing the list from Langley they use smoke grenades to escape the building in the chaos of the evacuation. In one scene, Claire is coughing and leaving the building through a revolving door, using her red dress. And in the following scene the whole team is back in the firetruck going away. As everyone else, Claire is back in her firefighting suit. Was it really necessary to disguise themselves again as firefighters? Or is this a continuity mistake?