BBC's källa menar att IS för in terrorister via flyktingbåtar, vad tror ni om detta, och vad är syftet?
Dessutom använder de båtarna som inkomstkälla.
http://www.bbc.com/news/world-africa-32770390
Government adviser Abdul Basit Haroun said smugglers were hiding IS militants on boats filled with migrants.
He based his claim on conversations with boat owners in parts of North Africa controlled by the militants.
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Mr Haroun added that IS allowed boat owners to operate - but demanded a 50% cut of whatever they made from each ship.