In this three-part series, Peter Taylor investigates the terrorist threat from young Muslims radicalised on the internet.
        Episode 1/3 Peter Taylor hears from extremists convicted under Britain's newest anti-terror laws.
        Episode 2/3 How young, radicalised Muslims plotted major attacks in Europe and America.
        Episode 3/3 The battle for young Muslims' hearts has begun, but the policy risks alienating many.