The report didn't identify those arrested, though it called them "takfiris," a derogatory term in both Arabic and Farsi referring to Muslims who accuse others of being "nonbelievers." Iranian authorities often refer to ISIS followers as "takfiris," though it isn't clear if this case involved ..."
http://m.newser.com/story/226914/iran-we-foiled-biggest-ever-terrorist-plot.html
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