On Sunday, the deputy commander of Iran's Revolutionary Guards threatened to cut off Europe's oil supply. The exaggerated claim suggests that the West's push for a new round of Iran sanctions, prompted by reports that the country is developing nuclear weapons, may be worrying Tehran.
After stamping out election protests, Iran may see its "resistance" brand weaken. The first big test: The Non-Aligned Movement summit, which opens Wednesday in Egypt.
Evidence mounts that international sanctions are having an impact.