I have the advantage of having had the very highest security clearances myself, having done a huge amount of professional intelligence analysis, and having been inside the spin machine.
In all of this, the one thing of which I am certain is that the timing is deeply political. This is more propaganda than plot. Of the over one thousand British Muslims arrested under anti-terrorist legislation, only twelve per cent are ever charged with anything. That is simply harrassment of Muslims on an appalling scale. Of those charged, 80% are acquitted. Most of the very few - just over two per cent of arrests - who are convicted, are not convicted of anything to do terrorism, but of some minor offence the Police happened upon while trawling through the wreck of the lives they had shattered.
Be sceptical. Be very, very sceptical.
I'm a very lucky person with every allergy known to man but still happy to be enjoying a wonderful life living in the best place in the world!