CEP Advisor Liam Duffy writes: "This danger will not be short-lived. The long arc of jihadism inside Britain stretches back 30 years when large numbers of British mujahideen left these shores to fight in Bosnia, Somalia and Chechnya. Nearly 30 years after the Bosnia conflict, some of the jihadi alumni are still haunting us, like the former London public schoolboy who helped murder journalist Daniel Pearl and now looks set for release in Pakistan."