Investigating all forms of extremism, from the EDL to homegrown jihadis to al-Shabaab.
Edward Stourton and 4 British Muslim journalists discuss the extremist threat to the UK
The secretive counter-extremism programme known as Channel is investigated by John Ware.
Examining government plans to tackle the activities of non-violent extremists.
Former jihadi Aimen Dean explains how Islamic State came to power and how it survives.
Pegida, Germany's anti-Islamisation movement, is growing fast. Catrin Nye investigates.
Suspected suicide bomber Kabir Ahmed left Derby to join IS. Simon Cox investigates why.
British jihadi Babar Ahmad's journey from Tooting to a US jail. Dominic Casciani reports.
Converts to Islam tell reporter Zubeida Malik how they were lured into extremism.
The widow of the 7/7 King's Cross bomber is alleged to be involved in an al-Shabaab plot.
Samantha Lewthwaite is once again connected to terrorism in Kenya. Who is she?
Have the Coalition's terror reforms struck the right balance?
In the wake of the massacre in Norway, James Silver reports on extremism in the UK.
Was David Cameron right to order an investigation into the Islamist organisation?
Phil Kemp asks if Luton deserves its reputation as a 'hotbed of extremism'.
Why are so few captured pirates brought to trial?
Linda Pressly investigates the latest ETA bombings in Mallorca.
Simon Cox investigates what really went on at the In Amenas gas field in Algeria.
James Silver asks whether some UK campuses have become seedbeds for extremism.
A look at aviation security in the wake of the parcel bomb found at East Midlands Airport.
Simon Cox asks if the emergency services have learnt the lessons of incidents like 7/7.
James Silver looks into the theories surrounding the release of Abdelbaset Ali al-Megrahi.
