Why is this? Has a decision been taken that most returning jihadis are harmless, made a mistake and will live blameless lives in future? Perhaps they will; but it is a big gamble for any country to take. It would be better not to let them back in the first place. That, of course, means being able to identify who they are and to intercept them if they try to return. Yet it is highly doubtful that our border controls are up to the task. A report yesterday from the Centre for Policy Studies disclosed that some 67,500 ships and planes are not met by overworked border staff while targets for detection and seizures are routinely missed. The National Audit Office reported recently that border points are routinely understaffed and that the troubled e-borders programme is only now showing signs of working after 12 years and £830 million spent on it.