Trivia: There were several Secret Service consultants on this film to give realism to the action. However, they were unhappy with the final product as it seemed that the kidnappers were able to get to the President without all that much trouble, even if they did have an insider.
Trivia: Bill Clinton was interviewed for this movie to get the perspective of the President and how he would interact with his entourage.
Chosen answer: It's not stated in the film, but if I had to make an educated guess I'd say his job is to make sure the news channel doesn't get any footage of any of the terrorist agents or the window the shots come from.