Vietnamese-Americans light candles at St. Helena, a Catholic church in Philadelphia, on April 4. Like many other once-struggling churches, St. Helena has been revitalized by immigrant parishioners. About 200 Vietnamese families worship at this church, along with others from Latin America, the Philippines and Africa. Matt Rourke/AP hide caption

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Andrew Kohut (right) and Bruce Stokes are guests at the Christian Science Monitor breakfast on May 3, 2006 in Washington, D.C. Andy Nelson/The Christian Science Monitor via Getty Images hide caption

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Boys in Uppsala, Sweden, read supportive messages placed at the entrance of a mosque following an attack in January. A new Pew study finds that religious intolerance is a global problem, with Muslims facing more hostility from individuals, and Christians from governments. Targeting of Jews, the study found, has gotten worse over in recent years. Anders Wiklund/AP hide caption

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Genetically modified rice plants are shown in a lab in 2006. A new report from Pew Research shows a wide gap between perceptions of safety of GM foods between scientists and the general public. Rich Pedroncelli/AP hide caption

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Occupy Wall Street protesters join a labor union rally in Foley Square before marching on Zuccotti Park in New York's Financial District in 2011. A new report shows that wealth inequality between whites and nonwhites grew during the Great Recession. Jason DeCrow/AP hide caption

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More than 65 percent of first marriages today are between couples already living together. For millennials, cohabitation is almost a rite of passage. Oliver Hoffmann/iStock hide caption

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Some voters are a lot more complicated than is commonly understood, a new Pew Research Center study suggests. In Denver, an election worker collects a mail-in ballot from a voter on Tuesday. Ed Andrieski/AP hide caption

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Texas, where abortion-rights battles took place in July at the state capitol, is part of an eight-state region that has gotten more conservative on the issue. Eric Gay/AP hide caption

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A new survey of more than 1,000 lesbian, gay, bisexual, and transgender adults finds that more than 90 percent feel more accepted in society than they did 10 years ago. Here, a woman displays her pro-gay T-shirt at the L.A. Pride Parade in West Hollywood last Sunday. David McNew/Getty Images hide caption

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In Boston and other places across the nation, people gathered Monday for a moment of silence to honor the victims of the marathon bombing. Mario Tama/Getty Images hide caption

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A Sig Sauer handgun on sale at a shop in Tucker, Ga. Erik S. Lesser /EPA /LANDOV hide caption

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