On Tuesday morning German police raided 200 addresses connected to a now-banned Islamist movement. Ibrahim Abou-Nagie, the movement's founder, has taken it around the world.

In his video messages to followers, Abou-Nagie doesn't come across as a dangerous man.

In a recent clip, shot in Malaysian capital Kuala Lumpur, Abou-Nagie appears with a manicured, greying beard and short-cropped hair, and greets his followers with the soothing words: "My dear siblings in Islam."

But, if German security services are to be believed, the 52-year-old is one of the most dangerous Islamists in Germany.

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