Although the evidence is unclear, it doesn’t seem that Britain barred Emwazi from travel at all. After all, he travelled to Turkey en route to Syria in 2013. Britain may well have passed on to Kuwaiti authorities their own suspicions about the risk posed by Emwazi. Critics will argue that it is wrong for the state to single out citizens who have not been convicted of any crime. But what if Emwazi was refusing to give a complete picture to police? Cage alleges that Emwazi “sought to find redress within the system”. Perhaps this is right. But in light of his previous story of safari-going, we have reasons to be sceptical.