It is what happens with all photo-ops. It happened with previous presidents and it will happen with future presidents. It happened with the tsunami and it happened on 9/11 with all dignitaries that visited. It happens with all events. Of course, you conveniently ignore that fact because "Bush Bad."
He goes down there on these types of trips because people like you B word that he is not going on these trips. You then B word that he is going on these trips and it is taking away from the relief efforts. Well, no sh--. What did you expect? A presidential visit is going to bring things to a halt. That is why it is best that he just stay away. More will get done without him there. That is not a slam on anyone. It is a slam on the system. The president (any president) will bring things to a halt if he shows up.
Of course, Bush is the first president to do something like this, because we all know that history started when he took the oath of office.