Sanctions have not often worked to get governments to change their behavior, but Iran may prove to be an exception. The country depends on income from oil sales, and the oil sector is highly vulnerable to sanctions.
The United States has stopped buying Iranian oil, and the European Union is set to do so at the end of next month. There are sanctions on Iran's central bank and punishments for companies that help Iran ship its oil.
Jamie Webster, an oil market analyst at PFC Energy, says Iran's oil exports — normally about 2.5 million barrels a day — are in serious jeopardy.
Tseren-ochir is a superintendent at Oyu Tolgoi mine who goes by the name "Augie" because it's easier for the foreigners he works with to pronounce. He is overseeing workers digging a nearly 5,000-foot-deep shaft down to reach the copper ore.
Mongolia, the land of Genghis Khan and nomadic herders, is in the midst of a remarkable transition. Rich in coal, gold and copper, this country of fewer than 3 million people in Central Asia is riding a mineral boom that is expected to more than double its GDP within a decade. The rapid changes simultaneously excite and unnerve many Mongolians, who hope mining can help pull many out of poverty, but worry it will ravage the environment and further erode the nation's distinctive, nomadic identity.
The first free presidential election in Egypt begins Wednesday.
Twelve candidates are running for the top spot vacated by Hosni Mubarak during last year's revolution. But none is expected to get an outright majority, and if that proves true, then a runoff will take place next month between the two leading vote-getters.
Many Egyptian voters say they are excited about the presidential election, which the country's ruling generals promise will be fair.
On All Things Considered today, NPR's Soraya Sarhaddi Nelson will look ahead to Egypt's first free presidential election — voting begins Wednesday and is expected to lead to a mid-June runoff — and how some Egyptians who played roles in last year's revolution there are refusing to take part because they don't trust the military leaders who run the country.