Probably not the best choice of word, but I have seen a friend (smart programmer coworker, he studied physics) going (over couple years) from relatively harmles

Probably not the best choice of word, but I have seen a friend (smart programmer coworker, he studied physics) going (over couple years) from relatively harmless libertarian beliefs through disagreement with U.S. foreign policy and agreement with Ron Paul to being 9/11 truther and eventually believing that U.S. army is causing global warming. Just because he didn't like the government... So, be careful, it can afflict lot of people, not just Muslims.