Understanding the role of religion in global affairs is often lacking among pundits and politicians. It is either discounted as irrelevant in a secular world or thought to be destructive. But the situation is much more complicated than many of us realize. Martin Marty has long been a keen observer, especially of fundamentalisms, which he mentions in this essay. The highlight of the essay is a report on Secretary of State John Kerry's acknowledgement of the important roles that religion plays, both positively and negatively. He recognizes that religion is central to the lives of billions across the globe. To discount or ignore religion, therefore is dangerous. Thus, I invite you to read and consider this question -- what role does religion play across the globe?