Men reach for food being thrown to them while they wait to enter Tunisia from Libya in the border town of Ra's Ajdir, March 1. U.N. officials say Tunisia cannot cope with the thousands of refugees entering the fragile nation. Spencer Platt/Getty Images hide caption

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In his first and only televised comments thus far on the Libya crisis, President Obama stopped short of calling for leader Moammar Gadhafi to leave. That's a stark contrast to Obama's response to the crisis in Egypt. Just one week after protests began in that country, Obama called for the Egyptian government to begin an immediate transition of power. Jim Watson/AFP/Getty Images hide caption

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Wisconsin Gov. Scott Walker discusses his budget during a joint session of the Legislature at the state Capitol in Madison on Tuesday. Opponents to the governor's bill to cut collective bargaining rights for state workers have been protesting the governor's plans for two weeks at the Capitol. Andy Manis/AP hide caption

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Govs. Haley Barbour of Mississippi (from right), Gary Herbert of Utah and Deval Patrick of Massachusetts prepare to testify on Capitol Hill. Chip Somodevilla/Getty Images hide caption

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Men reach for food being thrown to them while they wait to enter Tunisia after fleeing Libya, March 1, in Ras Jdir, Tunisia. Spencer Platt/Getty Images hide caption

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A view of Mogadishu's strategic junction, known as Kilometer 4. While the city is very dangerous, bullets don't fly all the time. When things are calm, people are often out and about, shopping and chatting. Frank Langfitt/NPR hide caption

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Cows graze at a Horizon Organic farm in eastern Maryland. Even though the milk produced here is deemed organic, a very small percentage of corn used to feed the animals may contain genetically modified material because of unavoidable cross-pollination between genetically modified corn and the organic variety. Keri Pickett/Horizon hide caption

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A gunman beckons foreign journalists inside barricades so they can see the main square of Zawiya, west of Tripoli. Reporters have had difficulty both entering Libya and traveling freely once in the country. Ben Curtis/AP hide caption

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A volunteer soldier waves cars through a checkpoint in Ajdabiya on Tuesday. Trevor Snapp for NPR hide caption

itoggle caption Trevor Snapp for NPR