In a post-nuclear-deal setting, the Iranian consumer market, characterized by a young and innovative population whose consumption habits align with western models, seems hard to resist for western companies. But, it would be detrimental if in striking business deals with Iran, these companies set aside all caution and vigilance. In most cases, they would be dealing with the worst elements of the regime. Consider one of the more recent examples. It is usually the Iranian capital Tehran that hosts high-level foreign delegates. Last month, however, it was the city of Mashhad that played host to a sizeable delegation representing French...