In the beginning of the episode, Andre Drazen claims that 20 million of his assets were frozen. However, when Jack is in the hotel room with Palmer and explaining the situation to him before he answers the phone, he claims that 200 million in Drazen's assets were frozen according to Drazen, rather than 20 million.
When Jack arrives at Palmer's room, he passes the lady that he met at the breakfast (think back 13 episodes) who was a friend from school. Surely one of them would of noticed each other.
In the 'previously on 24' segment, Victor is talking to Andre about doing nothing until they know Bauer is dead, they are hugging. However, in the previous, the lines are said slightly differently and they are standing apart
Jack: We leak a story to the press that he was killed in the explosion.
Sherry: You've got to be kidding.
Jack: I've never been more serious in my life.