Venezuelan President Hugo Chavez appears at an event in Caracas, Venezuela, on Thursday, after returning from radiation therapy in Cuba. Ariana Cubillos/AP hide caption

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Pope Benedict meets with Fidel Castro in Havana on Wednesday as he wraps up his three-day visit to Cuba. A large crowd turned out for the Mass, though the pope did not meet with dissidents. Osservatore Romano/AP hide caption

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A young girl bathes in an irrigation canal. The canal and nearby river are the primary sources of water for most people who live in the country around Saint-Marc, Haiti. John W. Poole/NPR hide caption

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A man rides his bicycle past a billboard welcoming Pope Benedict XVI, just days before his arrival, in Havana, Cuba. Pope Benedict's trip to Latin America includes Mexico and Cuba. Javier Galeano/AP hide caption

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Parishioners stand outside a Catholic church in a poor Santiago suburb on Saturday in Cuba. Pope Benedict XVI is in Mexico but will head to Cuba next for a three-day visit. Spencer Platt/Getty Images hide caption

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Pope Benedict XVI listens to a speech during his welcome ceremony in Mexico. Gregorio Borgia/AP hide caption

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Connie Marrero, age 100, was a major league all-star who struck out the likes of Joe DiMaggio and Mickey Mantle. He returned to his native Cuba after his career ended. He's now the oldest living ex-major leaguer and is finally getting a pension payment. He's shown here at his apartment in Havana. Nick Miroff/NPR hide caption

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Pope Benedict XVI is expected to speak out against drug violence during his visit to Mexico, which begins Friday. Here, an actor is shown in front of a poster announcing the pope's visit Wednesday in the Mexican city of Leon, Guanajuato state. Hector Guerrero/AFP/Getty Images hide caption

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