If I dare go back on topic for a moment ..... According to the BBC a man has just been arrested for aiding the girls in their border crossings, apparently he's part of a people smuggling organisation. I think that to engage with people smugglers takes quite a bit of organisation and coordination, to my mind that might be a bit much for the girls to sort out themselves. I'm still of the view that there must be a number of people involved in this. At this point I don't think there's any information available about whether IS directly helped with the arrangements, but I'm finding it increasingly difficult to believe they did not. People smuggling is normally an expensive game and we don't know if the girls would have had access to that sort of cash, but I think it unlikely.