Thanks for the heads up, Robert. This boils down to a fairly simple question for me - do I want to participate in the political disenfranchisement of Iranian (and other) authors and photographers? They have few rights of political participation in their own nations, and no control over whether their government chooses to sign international treaties. It's wrong of Wikipedia to take advantage of the unfortunate situation of the citizens of these nations by regarding them as having no rights in their own work.