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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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

itoggle caption Frank Langfitt/NPR

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

itoggle caption Keri Pickett/Horizon

Despite the "not for consumption warning," the DEA has banned the sale of products like K2, which contain herbs and spices sprayed with a synthetic compound chemically similar to THC, the psychoactive ingredient in marijuana. Kelley McCall/AP hide caption

itoggle caption Kelley McCall/AP

Teacher Kristen Henningfeld, center, of Elk Mound, Wis., protests on the steps of the state Capitol in Madison, Wis., on Feb. 26. Andy Manis/AP Photo hide caption

itoggle caption Andy Manis/AP Photo