George Barna, the well known Survey and Researcher, has published a book titled "Futurecast" in which he reports the changes in American's religious beliefs and actions during the years 1991 through 2011.
What he has discovered may or may not surprise you but it is definitely important, significant, and goes a long way in understanding and explaining many of the problems the USA is encountering today.
To read more about his findings as summarized in the USA Today article, HERE'S THE LINK
And to read the "State of the Church Series, 2011", which has considerably more details, as posted on the Barna website, HERE'S THE LINK
