Americans love to shop, even for religion. More than 40% of U.S. adults have changed their faith since childhood, many opting for no faith at all. That's the key finding of a major study by the Pew Forum on Religion and Public Life, which surveyed 35,000 people in five languages to create the most detailed portrait yet of the country's religious landscape.
The study found that the fastest-growing religious group is people without any religious affiliation. But that doesn't mean the U.S. is experiencing a secular surge. Most in this group aren't atheists; they just describe their religion as "nothing in...