Minister Ryan Bell decided to "try on" atheism for a year; now, although he says atheism is an "awkward fit," he's going to continue to not believe in God. Natalie Gee hide caption

itoggle caption Natalie Gee

Richard Dawkins, founder of The Richard Dawkins Foundation for Reason and Science, speaks at the March 2012 "Reason Rally" on the National Mall in Washington, D.C. Allison Shelley/Getty Images hide caption

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Bishop McNeil, who isn't a cleric despite his name, speaks to reporters Wednesday at a news conference to introduce the Freethought Equality Fund PAC. Frank James/NPR hide caption

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Must religion be embodied in a god or gods, such as Ceres, the Roman goddess of agriculture? Hulton Archive/Getty Images hide caption

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As religious as this country may be, many Americans are not religious at all. The group of religiously unaffiliated — dubbed €œ"nones" €-- has been growing. iStockphoto.com hide caption

itoggle caption iStockphoto.com