Just as the UK government advocates filtering extremist on-line content up pops Jamie Bartlett of the London-based think tank Demos, in a blog on The Daily Telegraph and mentions how hard this will be:
...there is a bigger problem that no one wants to mention: we still don’t really know whether watching extremist material online actually radicalises people. In my experience, it is not sermons by frothing fundamentalists that radicalise, but mainstream BBC reports about Syria or Palestine.
At the end he writes:
Dealing with extremism is difficult, and on the whole, we’re doing a remarkably good job. The internet is making this a little harder. But in the age of ever-increasing information and openness, reaching for the block button is not the answer.
Link:http://blogs.telegraph.co.uk/technol...dea-heres-why/

Within is a reference and link to a RAND report, based on research in the UK, 'Radicalisation in the digital era: The use of the internet in 15 cases of terrorism and extremism'.

Link:http://www.rand.org/content/dam/rand...RAND_RR453.pdf