Violent metaphors in politics are nothing new

There is much shock professed about the metaphors used to describe Mrs May’s political plight — talk of the ‘killing zone’, or her being stabbed, and worse. I feel this shock myself, but in fact such metaphors are routine in politics and almost always have been. Think, for example, of Harold Macmillan’s ‘Night of the Long Knives’ — arguably more tasteless, since it compared a cabinet reshuffle with a Nazi murder spree.