The hon. Gentleman is right: there have, sadly, been industrial-scale organised kidnappings—perhaps not so much kidnappings as enslavement of large numbers of people, particularly of women but people of communities and faiths that ISIL does not recognise or approve of. Sadly, there is little that we, from outside, are able to do to trace what has happened
to those people on the ground. Some of them have escaped and turned up as refugees, and their heart-rending stories have been published in some of the newspapers, which the hon. Gentleman will have seen. I am afraid we have low visibility when it comes to what has happened to many of these people.