Jane, I've seen the Abu Graib works online. I've edited my previous post for clarity. My brief opinion of them is there.
As far as sensationalism goes, I think it's a complicated question, right up there with, and tied into, the question that makes us all cringe, "what is art?" But hey, you asked.
Being an artist myself, I tend to think that art exists in two distinct places. And, you have to look at each of these places differently.
First, I think art exists in the
process of creation. This, I think, is where the truth of the work exists. Unfortunately for us, the only one who has access to this truth is the artist. The rest of us cannot judge this because we cannot know it. EVER. Art is as much about process and intention as it is about brush strokes and results. But the moment a second person (the viewer) becomes involved, the 'truth' of the work changes. This is why we cannot judge whether or not something is or isn't art. All we have access to is the final result, not the process.
The second place art exists is in the situation of the outsider viewing the artwork. At this point, the meaning of the work becomes a collaboration between the work (not its truth, but its static presentational existence) and the viewer. This means that the truth of the piece becomes a different thing every time it is viewed, depending on what each viewer brings to it, combined with what the viewer is able to take from it. Again, this cannot be judged because we can only know what
our truth for the piece is.
So, sensationalism? That would exist in Botero's intention and process which we can only guess at. My guess, based on what I know of him and his previous work, would be that his intention was not sensationalism. But I could be wrong.
Way more than you probably wanted. But, as an artist, I find that question too difficult to answer in less complicated terms.
Art has a double face, of expression and illusion.