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ISIS 'call to arms' raises terror threat levels
CNN's Jim Sciutto explains what's behind the current terror threat warning about the risk of "lone wolf" terror attacks.
01:43 - Source: CNN
ISIS Power and Terror 14 videos
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ISIS 'call to arms' raises terror threat levels
01:43
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Fleeing ISIS in Mosul: Their faces say it all
01:01
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Women recount horror of life under ISIS
01:58
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ISIS survivor tells her story
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Iraq forces and ISIS exchange gunfire
01:20
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Iraqi women react as people gather on July 9, 2016 at the site of a suicide-bombing attack which took place on July 3 in Baghdad's Karrada neighbourhood.

The Baghdad bombing claimed by the Islamic State group killed 292 people, according to a new toll issued on July 7, many of whom were trapped in blazing buildings and burned alive. A suicide bomber detonated an explosives-laden minibus early on July 3, ahead of the Eid al-Fitr holiday marking the end of the holy Muslim fasting month of Ramadan. / AFP / AHMAD AL-RUBAYE        (Photo credit should read AHMAD AL-RUBAYE/AFP/Getty Images)
Majority of ISIS victims are Muslim
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ISIS' battle tactics
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ISIS released still pictures purporting to show massive parade of their militants in the city of Sirte, Libya
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Iraqi town suffering from ISIS chemical attack
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