‘It used to be thought, when candid images were not common, that showing something that needed to be seen, bringing painful reality closer, was bound to goad viewers to feel – feel more. In world in which photography is brilliantly at the service of consumerist manipulations, this naive relation to poignant scenes of suffering is much less plausible,’ so wrote renowned critic Susan Sontag in 2002. Can it help to overcome indifference, if we expose ourselves to graphic images of human devastation? How can we keep moral vision from turning into pornographic voyeurism?