In crime books it's possible to chart forensic technology by how well it has to be explained to a reader. In mid-Victorian crime novels fingerprinting has to be explained because it's new. Nowadays it's part of our world and we can simply assume that knowledge if we write about it.
Art, though, is never the voice of a country; it is an even more precious thing, the voice of the individual, doing its best to speak, not comfort of any sort, but truth. And the art that speaks it most unmistakably, most directly, most variously, most fully, is fiction; in particular, the novel.