What did Silvia actually hear? (Spoiler)
I understand from the ending that the African president Zuwanie planned a failed assassination attempt to generate people's sympathy for him. But what was the point of having a hoax in their plan that involved Silvia? Also, who were the people she heard talking that night? Did they deliberately want her to overhear what they said, and why?
Also, on the day of assassination, how did Silvia know that the president would be taken to that room for protection? I mean had there been no assassination attempt, then Silvia would have hided in that room overnight for nothing.