The videotaped killing of French tourist Hervé Gourdel in Algeria on Wednesday seemed at first yet another in a string of horrific beheadings of Westerners—the fourth since the chilling death last month of American journalist James Foley. Yet to Western officials, the killing bore another ominous signal too: That the fight against the Islamic State of Iraq and Greater Syria, or ISIS, could become far more complicated as the terror group’s clout expands across a region already awash in weaponry and riven by violent upheaval.
Far different from the three Westerners ISIS has beheaded in Syria – Foley, American journalist Steven Sotloff and British aid worker David Haines–Gourdel, 55, was hundreds of miles from any lethal battlefront and seemed to have no expectation that he was headed into potential danger. A mountain gui...
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