Iranians also see external reasons for caution. Analyst Foad Izadi at Tehran University says Iranians only need to look at the chaos plaguing the region to see how easily popular demands for change can get out of hand.

Iran has a young population, and the desire to get out from under conservative religious social restrictions and to be able to speak their mind without fear of arrest is palpable. But nearly seven years after authorities crushed massive street protests, reformers are still threatened with arrest and expectations for change are extremely low.

Rigorous teaching schedules combined with mounds of paperwork can lead to burnout.

Israel is a big provider of military technology to Brazil and this has caused a big breach in the two sides of the government. On the one hand, you have the diplomatic side. On the other side, Brazil's military has been quoted in the local press as being quite upset that this diplomatic standoff could affect the military relationship.

Iranians also see external reasons for caution. Analyst Foad Izadi at Tehran University says Iranians only need to look at the chaos plaguing the region to see how easily popular demands for change can get out of hand.

There were stories coming out of Thailand that slave labor was being used to catch and process the seafood we eat. They were nearly all from Miramar. Because of reports of widespread labor abuses, several countries are now considering a ban on imports of Thai seafood.

Sanaz Minaei [business woman] shows a visitor a cooking class at one of her several companies and says the opportunities for Iran are huge if only the country can rejoin the global economy as promised.