People are allowed to think or say whatever they want, but Robertson is a very visible public figure with a lot of influence, so he should understand that spouting this kind of nonsense is going to create a lot of attention he doesn't want, and encourage his more idiotic followers in a way that no one wants. I'd say that ethics should enter into what it is he does on some level, but the guy clearly doesn't have any common sense, so that's obviously not going to work.
On a side note, I hope Haiti's copy of the agreement, signed in blood by its citizens and notarized by the devil himself, wasn't harmed by their earthquake. As I understand it, the document, which is printed on a scroll of human skin, was being housed in an archive in one of the more devastated areas.
