A tidal wave of hypocrisy has greeted the discovery of the Bethnal Green schoolgirl and Isis bride Shamima Begum in a refugee camp in eastern Syria. Grandstanding politicians like Home Secretary Sajid Javid say they will do everything to stop her coming back to the UK and might seek to put her on trial as a terrorist if she did return. 
It is a symptom of the parochialism of British political life that debate rages over the fate of Begum and her possible complicity in Isis crimes. But there is scarcely a word of well-informed discussion about the role of the British and other Western governments in creating the circumstances in which Isis was able to create a powerful de facto state in the heart of the Middle East. 
The role of foreign fighters in Isis was important but tends to be exaggerated because of understandable public fascination with people who would leave London or Paris to go to fight for a murderous and bizarre jihadi cult in Syria and Iraq. 

I was once in touch with a former Isis fighter, himself a Syrian, who had talked to foreign volunteers of whom he was highly critical, saying that they were ill-informed about Islam and local customs. He thought that many had come to Syria because of unhappy home lives or simple boredom and were not much use for anything except propaganda – showing that Isis was a global movement – or as suicide bombers. 
A reason why many of the foreigners were used in the latter role was they lacked military training. Another was that Isis is a deeply paranoid movement that sees spies and traitors at every turn and was convinced that a proportion of the volunteers from abroad were in fact foreign agents so it was prudent to have them blow themselves up as soon as possible. 
It is difficult to have much sympathy for these foreign jihadis and Isis sympathisers who found Syria very different from what they expected. But they were not alone in their misunderstanding of the nature of the war and its likely outcome.
The rise of Isis surprised many, but it was neither unpredictable nor unpreventable and many in the region foresaw what dire things would come years before Isis fighters captured Mosul in 2014 and established the caliphate. 
I was spending much time in Baghdad after 2011 and I recall Iraqi political leaders repeatedly telling me that al-Qaeda in Iraq (AQI) would resurrect itself unless the civil war in Syria was swiftly brought to an end. They said the same to Western diplomats and were told they were exaggerating.