The president can zoom in on a subject with enormous intensity – but get bored of it equally quickly, writes Jon Sopel . If he can deliver a lasting peace, he will truly have earned his Nobel prize G o to Kosovo today and among men in their mid-twenties you will find a disproportionate named Tonibler. It isn’t a traditional Slavic name, but after the vital role that Tony Blair played in prosecuting the war against the Yugoslav leader, Slobodan Milosevic in 1999, so a new generation were called ‘