Susan Sontag explains in this article how photography is an a lot of way an illusion of the truth. Though photographs to have an emotional impact that few other mediums can capture Sontag writes that in order for photography to keep pushing this boundary that makes the viewer feel emotions when seeing a picture photography must get more horrifying.  Then eventually we become desensitized to the image, but i think that this is true for a lot of other areas. for example violence on television.  While reading this article i did think it is interesting that even though photography is the closest art form to show the reality of what is being depict that we can still be so removed from it, Sontag proves this in her five reasons why one never understands anything from a photograph.