Gallup Poll

Fewer than 10 percent of Americans are deeply committed Christians, says pollster George Gallup, who adds that these people "are far, far happier than the rest of the population."

Committed Christians, Gallup found, are more tolerant than the average American, more involved in charitable activities, and are "absolutely committed to prayer."

While many more Americans than this 10 percent profess to be Christians, adds Gallup, most actually know little or nothing of Christian beliefs, and act no differently than non-Christians.

"Overall," says Gallup, "The Sunday School and religious education system in this country is not working."