I know its far fetched...
But the only way to make most (not all) politicians think about the war on terror - calling the troops back... etc. - if they are in immedate danger themselves...
So what if the Plan is to kill Brody - one of them.
And making it look like, this could happen anytime, anywhere again.
Maybe he doesn't know this, or maybe he is already so devoted.
Him knowing or not - he will help being killed, or even other politicians. (Die like Kennedy - or help getting a bomb into the WhiteHouse, etc.)
Thing is, the world mustn't know otherwise politicians wouldn't trust each other, instead of fearing Terrorists.