religion

The following topics are now prohibited at most family gatherings: politics, religion, education, medicine, science, climate, taxes, architecture, media, movies, automobiles and anything to do with Philadelphia sports.

"We were teenagers, which in many religions is the age where you turn your gaze towards the adult world," he said.

"One example are neo-pagan groups, a religious and cultural current based on pre-Christian paganism whose followers see themselves as living Scandinavian paganism -- often in contrast to monotheistic religions such as Christianity."

He says his concern is about the extreme elements of Islam, not the religion as a whole.

However, analysts say these are often motivated by competition for resources, such as water or land, rather than religion.