Focus on killing head of Isis will distract from real threat

MANY believe that killing the leaders of terrorist groups such as Islamic State could change the course of events in Iraq and Syria.
Like the cutting off of a snake’s head, eliminating the chief of a terrorist organisation is assumed to deal it a fatal or near fatal blow. The US government, for instance, often boasts about killing major al-Qaeda leaders, and viewed such assassinations as a clear mark of progress in the global war on terror.