Morning Edition for June 7, 2012 Hear the Morning Edition program for June 7, 2012

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Iranians line up at a gas station to fuel their motorcycles in central Tehran in February. Oil is the lifeblood of Iran's economy, but the planned EU boycott is expected to deal a major blow to Iranian oil exports. Behrouz Mehri/AFP/Getty Images hide caption

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Behrouz Mehri/AFP/Getty Images

Planned EU Oil Embargo Looks Set To Squeeze Iran

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Scott O'Neill wants to rid the world of dengue fever by infecting mosquitoes with bacteria so they can't carry the virus that causes the disease. Benjamin Arthur for NPR hide caption

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Benjamin Arthur for NPR

A Scientist's 20-Year Quest To Defeat Dengue Fever

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Moncef Marzouki, the president of Tunisia, photographed in the presidential palace. John W. Poole/NPR hide caption

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John W. Poole/NPR

Tunisia's Leader: Activist, Exile And Now President

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Author Dorothy Parker works at her typewriter in 1941. After her death at 73, Parker's ashes were stored in a file cabinet until being interred at NAACP headquarters in Baltimore. AP hide caption

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AP

How Dorothy Parker Came To Rest In Baltimore

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As schools look to cut costs, more are considering using computers to grade students' writing assignments and to provide writing help. The programs can assess large numbers of papers in seconds. David L Ryan/The Boston Globe via Getty Images hide caption

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David L Ryan/The Boston Globe via Getty Images

Computers Grade Essays Fast ... But Not Always Well

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Isabel Doran, 4, gets a CT scan at Children's National Medical Center with her mom, Veronica Doran. The X-ray radiation in CT scans raises the risks for cancer, including leukemia, a new study shows. Dayna Smith/The Washington Post/Getty Images hide caption

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Dayna Smith/The Washington Post/Getty Images

CT Scans Boost Cancer Risks For Kids

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Claude Monet observes his Giverny, France, garden from its Japanese footbridge in this 1922 colorized. Courtesy of the New York Botanical Garden hide caption

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Courtesy of the New York Botanical Garden

Monet's Green Thumb: How Art Grew From A Garden

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More than 10,000 children from Iowa schools joined Michelle Obama during the "Let's Move" interactive celebration in Des Moines last February. Conrad Schmidt/AFP/Getty Images hide caption

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Conrad Schmidt/AFP/Getty Images

Michelle Obama's Workout Jams: 'I Really Mix It Up'

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