It's a sad, but well-known truth that many people around the world are persecuted for their religious beliefs. But many people are also suffering for their lack of religious belief, though their stories are not as often shared.

The American Humanist Association created this infographic which shows some of the ways in which atheists are socially and legally discriminated against.

The rise of the religious "nones" in the United States show that more and more people are choosing not to affiliate themselves with an organized religion. But why is this so threatening to people of faith?