…statistics indicate most people were not so drastically reshaped and motivated by the Sept. 11 experience. A Pew Research poll in December 2001 found that those who said they prayed or worshiped more in the aftermath of the attacks were people who already were the most religious.
Indeed, the number of people who are “unchurched” — who have not attended a service or event other than a wedding or funeral in the last six months — increased from 24% in 1991 to 37% in 2011, according to two decades of studies by George Barna, founder of the Christian research firm The Barna Group. What never wavers: Nearly all Americans, about 95%, consistently say they believe in God or a higher power.
And that moves to the forefront during a crisis, says David Kinnaman, president of The Barna Group and author of a new book, You Lost Me.