After an acrimonious US election whose outcome Moscow may or may not have influenced, can it really be that a few maverick intelligence agents from Russia and the United States are fighting a discreet battle-to-the-death on some of London's back streets? And that the corpses are piling up, out of sight of the British police? Or is that just more "fake news"? ... Well, luckily, no it isn't. Not yet, anyway, because...