'Atheist Republic' reports: In the United States, the fastest-growing religious affiliation is "no affiliation," and it is leading to a major crisis for religious leaders. The report cited a Pew Research poll which found that 36% of younger millennials identify as either atheist, agnostic, or "nothing in particular." The report found that the vast information available through the internet is leading many away from churches, and toward their own personal journeys of spiritual discovery.