Deliberate mistake: In the shot where peoples' bags are being checked in the two Xray machines as President Zuwanie is arriving, you can see that both monitors are showing the exact same bag's contents. Also, although you can see one of the machines' Xray-active light turning on, the image on the monitor does not change. (01:40:35)
Deliberate mistake: When the Matoban delegation arrives at the UN, it shows the motorcade entering the circle in front of the UN Secretariat building and stopping at the revolving doors right at the front the staff entrance. Diplomats' motorcades always continue on to the delegates' entrance under a protective tent in front of the GA building so as to allow VIPs to alight from their vehicles to prevent potential snipers from having a view of them. The very next shot of the ambassador shows him riding the escalator, which is at the delegates' entrance, going up to the General Assembly building. This would not have been possible unless they made him walk about 300 meters outside in broad daylight. No chance of that seeing he was already being protested on 2nd avenue all the way from the Queensboro bridge. Obvious reason for this error: The shot of the delegation getting out of the cars looks far better in the open right in front of the UN secretariat building rather than inside a protective tent.
Chosen answer: At this point, she has set her mind on killing the African leader and knows she'll likely be killed immediately afterwards (police, bodyguards, etc). She's writing her name in anticipation of her death.