‘This is a story that gets to the root of how my society is structured right now … There’s a way that prison is invisible to a middle-class person. It’s not a conspiracy, but it may be by design in certain regards. It’s a serious subject for a novelist.’ Rachel Kushner is among America’s brightest literary stars. With her previous, highly acclaimed novels, Telex from Cuba (about American expatriates in 1950s pre-Castro Cuba) and The Flamethrowers (about radical New York artists in the seventies), she explored two very different…