As many as 800 Britons are estimated to have travelled to fight for or support jihadi groups in Syria or Iraq, and around half are feared to have returned to the UK.
Last year, the Government admitted just 14 of nearly 400 returnee fighters have been jailed, raising fears the rest are living off the radar and may be vulnerable to radicalisation.
http://www.independent.co.uk/news/uk...836.html%3Famp