In Burlington, Vt., hundreds of people showed up to try to break the record for world's largest cowbell ensemble. The jam band Phish organized the event to raise money for flood relief in Vermont.

The National Rifle Association's annual convention featured a display of shooting targets featuring zombies. Firing ranges across the country are offering zombie-themed shooting events. Sales of zombie targets are booming.

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Over the weekend, tornadoes ripped through several states, killing at least five people in Oklahoma and causing millions in damage to communities. Among the hardest hit areas was Wichita, Kan., which has seen its share of hardship over the past several years.

The Egyptian elections were thrown an unexpected curve when 10 presidential candidates were disqualified from the ballot. They include hopefuls from the Muslim Brotherhood and the old guard.

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President Obama is back in Washington this morning, after a weekend summit in Colombia. The gathering with leaders from throughout the Americas produced some agreement on trade and some disagreement on drug policy in Cuba.

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Now, the man who has confessed to carrying out Norway's worst peacetime atrocity goes on trial today. Anders Behring Breivik, a right-wing extremist, raised his fist in a Nazi-style salute after bailiffs removed his handcuffs in the courtroom. Breivik has told authorities he acted to protect Norway from Muslims. The rampage in Oslo and at a youth camp left 77 people dead and dozens injured. NPR's Eric Westervelt is in Oslo and reports that the central issue for judges will be Breivik's mental health.

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What the Taliban are calling the start of their spring offensive kept security forces across Afghanistan fighting throughout Sunday and into this morning. Officials say 36 insurgents were killed in Kabul and three other eastern provinces. Three civilians died in the attacks, and eight members of the police and army were killed. American officials are praising Afghan forces, but questions remain about how the insurgents were able to infiltrate the most secure parts of the capital. NPR's Quil Lawrence reports.

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The action by China's central bank widens the range at which the currency can be traded on the international market. The move is seen as seen a step toward addressing foreign complaints that China was suppressing the value of its money to boost Chinese exports, and hurt foreign imports.

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Let's turn now, to the economics of a good meal. Tyler Cowen is an economist, author of the blog Marginal Revolution, and a serious eater. He seeks to use his understanding of economics to zero in on the best food and best restaurants, and he shares what he's learned in a book called "An Economist Gets Lunch." Cowen is a fan of local food. But for the taste, not because he thinks it will save the world.