If the US government doesn't take Iran sanctions seriously, why should anyone else?

Many of you are probably aware that the United States passed the Iran Libya Sanctions Act (now known as the Iran Sanctions Act) in 1996. Some of you may even recall a New York Times article that I blogged back in March that spoke of billions of dollars in US government business going to companies that also did business with Iran. But I doubt that most of you are aware of the extent to which