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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. Experts says Iran's oil exports are now in serious jeopardy.

Over the past decade or so, sigmoidoscopy has been largely abandoned by doctors in the U.S. in favor of colonoscopy to detect and prevent colon cancer. But sigmoidoscopy is easier on patients and is also effective in finding precancerous polyps.

Once, American Idol helped establish a new pop songbook and distilled the essence of contemporary stardom. NPR Music's critic, Ann Powers, says those days are gone.

It wasn't until she applied for Medicaid that Jennifer Andrushko discovered someone had been using her young son's Social Security number. Because kids don't have much use for credit, the crime often goes undiscovered for years. Now, Utah is piloting a program that would help protect children against fraud.

American athlete Allyson Felix is still weighing which events she'll focus on in London this summer. She already has two Olympic silver medals plus a relay gold. Now she wants an individual gold. To get it, she'll have to beat her arch-rival: Jamaica's Veronica Campbell Brown.

The movie being talked about the most at this year's Cannes Film Festival in the south of France is Michael Haneke's Amour. It's the 65th anniversary of the festival.

Nearly two years ago, President Hamid Karzai called for armed private security contractors in his country to be replaced by a state-run force. The Afghan Public Protection Force took over last month, and its off to a rocky start.

Egyptian voters go to the polls over the next two days to vote for president. There are 12 candidates but polls suggest the race is down to four men: two Islamists and two former officials in the regime of ousted President Hosni Mubarak. If no one wins at least 50 percent of the vote in the first round, a runoff will be held next month.

Oregon officials are trying to ease the stress of road construction along the Sunset Highway for at least one resident. Rose-Tu is a pregnant elephant at the nearby Oregon Zoo.

An artist painted South African President Jacob Zuma exposed. The president is seeking a court order to have the painting removed from a gallery. At the University of Texas, a commencement poster included a typo. It was missing the letter "L." It's supposed to be the Lyndon B. Johnson School of Public Affairs.