Plot hole: Toward the end of the movie, it is revealed that Silvia spent the night in the secure room where the Matabo President was taken after the assassination attempt so that she could be alone with him and threaten to kill him. With the U.N. and Secret Service on alert for an assassination attempt, wouldn't they have swept the secure room right before the Matabo President arrived that day? In addition, Silvia would have had to use her access card to get in that area of the building, so there would be a record of her being in the building but not at her station. Wouldn't that raise some suspicion long before Tobin figures it out?
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.