CONFRONTING THE ‘CALIPHATE’ | This is part of an occasional series about the rise of the Islamic State militant group, its implications for the Middle East, and efforts by the U.S. government and others to undermine it.

Mizanur Rahman is believed to be a key figure in the world of preachers, teachers and true believers whose sophisticated online propaganda is critical to the Islamic State’s allure.

They say his thousands of tweets and Facebook posts, and fiery lectures on YouTube, are intended to inspire vulnerable young people — from London to Chicago to New Delhi — to join militant group ISIS that beheads, crucifies, burns and drowns its enemies in the name of God.

Read the article “Police Call Him An ISIS Recruiter. He Says He’s Just An Outspoken Preacher.” on washingtonpost.com.