06/11/2015 10:28 am ET Updated Jun 11, 2015

How ISIS Crippled Al Qaeda

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On 5 February, Jordanian officials confirmed that the intellectual godfather of al-Qaida, Abu Muhammad al-Maqdisi, had been released from prison. Though he is little known in the west, Maqdisi’s importance in the canon of radical Islamic thought is unrivalled by anyone alive.

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