Sarah Montague speaks to Sara Khan, director and co-founder of Inspire. Kadiza Sultana was 16 when she ran away from her home in London to join the so-called Islamic State group in Syria. Her family have heard reports that she is dead - killed in a Russian air-strike. It's hard enough to understand why young men join IS, it's harder still to see what attracts women. Sara Khan is at the forefront of efforts in the UK to prevent young women being radicalised. What does she say to them? And is it making any difference?(Photo: Sara Khan in the Hardtalk studio)