Keith
The best camera is one that still works!
I think it's the banality of the photograph which is so unsettling, it has all the elements of another familiar facebook beach holiday photograph, only that the child is dead.
That said, I think it's power is due to it's timing and political context. So much of the argument against accepting refugees is that they are a threat and they aren't like "us", this photograph goes against that. But Roger is right in that it doesn't really have the makings of an iconic photograph like the Nick Ut image, but then again I'm not sure if the media really can support iconic images anymore.
That is so true ... without context the image doesn't really say much. Nick Ut's image on the other hand is very dynamic and needs little explaining.