on him and understand his mindset is actually quite hard. so, all that isolation that he's been through, i mean, that might explain quite a lot about the anger that seems to be welling up in him against ukraine. you've definitely got this sense from putin that the anger at what he sees as russia's humiliation has been growing, and that's really what he came into power for at the turn of the millennium, was as someone who was going to restore russia after a decade of humiliation, of being on the back foot economically, politically, militarily, in the terms of the spy wars, the language about russia being besieged and under attack, you know the sense in which perhaps he believes some of his own rhetoric. it's notjust for public display. i think that will be worrying people, because it suggests someone whose judgment may not be as rational as we might think it is. there is an unpredictability to him. if he were to decide to use nuclearweapons, i mean, he's reminded us rather heavy handedly, hasn't he,