America is a less Christian nation than it was 20 years ago, and Christianity is not losing out to other religions, but primarily to a rejection of religion altogether, a survey published Monday found.
The only group that grew in every U.S. state since the 2001 survey was people saying they had "no" religion; the survey says this group is now 15 percent of the population. Mark Silk said this group is likely responsible for the shrinking percentage of Christians in the United States.
But researchers point out that just because people are dropping out of organized religion, that doesn't mean they're abandoning faith.
Full story: Survey shows major faith shifts; Growing group of Americans claim no religion at all
