It's the word that politicians dare not publicly mention for several decades in the hope it was dead and buried in 1924. Yet the issue has now emerged explicitly such that it is impossible not to mention it. Earlier this year a CIA think tank predicted the re-emergence of the Caliphate by 2020. Then on Saturday 16th July 2005 Tony Blair made a speech where he gave his definition of what he thinks are the end aims of what he calls the 'evil ideology' of Islamic extremism. ‘They demand the elimination of Israel; the withdrawal of all Westerners from Muslim...