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The man previously known as 'Jihadi John' - the British Islamist killer who has appeared in propaganda videos for the Islamic State terrorist organisation - is now thought to be a computer science graduate from west London called Mohammed Emwazi.

CAGE's research director Asim Qureshi claimed Mohammed Emwazi had been harassed by British security services.

Andrew Neil spoke to Liberal Democrat Maajid Nawaz from the counter-extremism think tank, the Quilliam Foundation about Islamist organisations.

They were joined by Harry Cole from the Guido Fawkes political blog, and Atul Hatwal, editor of the Labour Uncut blog.