A lot of the respondents here are entirely missing the point, so let me raise it again.
It's fantastic that so many Muslims and Islamic leaders are speaking against the vile radicalism that is sweeping the nation, but it is not enough. What has to be done, with the help of the many hundreds of mosques in the UK, is to weed out and isolate the few (e.g. Didsbury) that host radical preachers, who in turn encourage young muslims to carry out attacks.