Pew Forum on Religion & Public Life conducted a survey that states 78% of the adults in America classify themselves as Christian (this includes Protestant, Catholics, Mormons, etc). Only 5.8% of those adults claim religion is "somewhat important or very important" in their lives. That is a scary statistic! The margin between being a Christian and claiming it is important in their lives is too large. –Jim L. Wilson and Joe Lam
James 1:26 (ESV) (26) If anyone thinks he is religious and does not bridle his tongue but deceives his heart, this person’s religion is worthless.