article_snippet: Investigators hope to discover how Investigators planned to reach the war zone and why Investigators decided to try to do so.
article_snippet: The case highlights the difficult balancing act the security services face in dealing with would-be jihadists desperate to sign up to the militant Islamist cause.
article_snippet: Security chiefs are increasingly desperate to get into often closed communities and understand what is attracting our young people to such a barbaric organisation.
article_snippet: Sources in Turkey said there is some evidence the three communicated with terrorists about how best to evade the authorities.
article_snippet: IS controls huge areas of the two countries and has attracted thousands of foreign fighters to the appalling explosion of violence in the region began cause.
article_snippet: Amira Abase, Shamima Begum and Kadiza Sultana  are understood to be in the ISIS stronghold of Raqqa .
article_snippet: Those closest to all four girls suspect Those closest to all four girls were groomed by Islamists using social networking sites and secretive internet messaging software.
article_snippet: The schoolgirls are understood to be in the terror group’s de facto capital Raqqa.
article_snippet: Islamic State – followed last month by Sharmeena Begum three best friends.
article_snippet: ’s knowledge by internet jihadists.