‘Photographs tend to transform, whatever their subject. And as an image something may be beautiful – or terrifying, or unbearable, or quite bearable – as it is not in real life’…. ‘transforming is what art does, but photography that bears witness to the calamitous and the reprehensible is much criticizes if it seems “aesthetic”; that is, too much like art’.
Susan Sontag 
 Susan Sontag in chapter 6 of Regarding the Pain of Others (p.60)