A U.S. Border Patrol officer keeps watch over the fence that divides the U.S. from Mexico in the town of Nogales, Ariz., on April 22. Mexico has denounced a newly passed Arizona law that requires police to question suspected illegal immigrants and orders people to carry proof of their immigration status. Mark Ralston/AFP/Getty Images hide caption

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United Nations troops from Bolivia distribute water and meals to the residents of Cite Soleil, Haiti, after the Jan. 12 earthquake. Marco Dormino/Courtesy of U.N. hide caption

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Nine-year-old Yaripsa Gonzalez (foreground) suffered stomachaches and insomnia in the days after the quake. She lives with her three siblings and her parents in a neighborhood on the northern edge of Santiago. Jason Beaubien/NPR hide caption

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Berlyne Chery, 13, after being returned to her village of Calebasse, Haiti. She was one of the 33 children taken by a group of U.S. missionaries after the earthquake in January. The missionaries claimed the children were orphans, but they all have living parents. Jason Beaubien/NPR hide caption

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A tent camp at the Petionville Club in Port-au-Prince, Haiti, holds about 40,000 people, according to local organizers. Officials say 250,000 people across the city need to be moved out of camps such as this one before the rainy season arrives in the next few weeks. This camp is at the bottom of a ravine and could flood during a heavy rain. Jason Beaubien/NPR hide caption

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Olga Esparza Rodriguez stands next to a photo of her daughter, Monica, who disappeared in Ciudad Juarez, Mexico, in March 2009. Monica is among the hundreds of women and girls who have disappeared from the violence-plagued border city over the past two decades. Jason Beaubien/NPR hide caption

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Outgoing Chilean President Michelle Bachelet (right) speaks to a woman Monday during her visit to areas affected by the quake and tsunami in Constitucion, Chile. She faces criticism over how she handled the earthquake's aftermath. Claudio Santana/AFP/Getty Images hide caption

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A demonstrator protests the arrival of Mexican President Felipe Calderon in Ciudad Juarez on Feb. 17. He holds a sign reading, "More green areas, less greens in the area" (referring to soldiers). Calderon arrived in the city for the second time in less than a week to meet with local and state authorities to address a security crisis after a group of gunmen attacked a party Jan. 31, killing 15 teens and injuring many others. Jesus Alcazar/AFP/Getty Images hide caption

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An officer with Chile's army talks to a civilian waiting in line to buy fuel at a petrol station in Concepcion on Tuesday. Critics say Chilean President Michelle Bachelet was too slow in sending the army in to restore order in the areas hardest hit by the Feb. 27 earthquake. Evaristo Sa/AFP/Getty Images hide caption

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A street vendor sells music CDs in Mexico City. Ronaldo Schemidt/AFP/Getty Images hide caption

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Mexicans preparing to cross illegally into the U.S. usually wait for nightfall. Here, a group sits along the border fence in Tijuana, Mexico, in 2008. Dario Lopez-Mills/AP hide caption

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NPR correspondent Jason Beaubien reports from an orphanage in Port-au-Prince. David Gilkey/NPR hide caption

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