NPR's David Greene leads a discussion about religion with a group of young adults at the Sixth & I Historic Synagogue in Washington, D.C. Coburn Dukehart/NPR hide caption

itoggle caption Coburn Dukehart/NPR

Peyer says that even though she and her husband believe different things when it comes to God, they have found ways to accept and support each other's beliefs. Leah Nash for NPR hide caption

itoggle caption Leah Nash for NPR

Carol Fiore's husband, Eric, died after the plane he was test-piloting crashed in Wichita, Kan., 12 years ago. An atheist, Carol felt no comfort when religious people told her Eric was in a better place. Barbara Bradley Hagerty/NPR hide caption

itoggle caption Barbara Bradley Hagerty/NPR

Rigoberto Perez (from left), Kyle Simpson and Miriam Nissly participated in a roundtable discussion about religion with NPR's David Greene at the Sixth & I Historic Synagogue. Coburn Dukehart/NPR hide caption

itoggle caption Coburn Dukehart/NPR

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