In June, Iranian Foreign Minister Mohammad Javad Zarif said the "psychological remnants" of curbs on Iran were still deterring business, and that Washington should do more to encourage banks to engage with Tehran.
Many Iranian Americans agree. According to a Zogby Research Services poll in March, more than half of 400 respondents said that letting Americans invest in Iran was a "top priority". More than a third said it was time to lift the embargo.