Mayor of London Sadiq Khan giving Scotland Yard's Anti-Terror section free rein in the investigation, arrest & conviction of Islameist terrorists; they given backup by MI6 & GCHQ:
Your call, Fei FAILING Twonk.
7/7. Westminster Bridge. Manchester. Our secular democracy based on Rule of Law - via Parliament - is still here.
As is Britain as a whole. Even after 30 years of the IRA and Luftwaffe bombs/V-1s/V-2s in WWII. Unless you're prepared to admit that the IRA's acts were unjustifiable, and that Shitler was an inferior subhuman who had no right to exist, then the fact you don't get it is the least of your problems.
I refer you to the aforementioned GCHQ: their total scanning & interception of the entire telecommunications network. If what you say is on FSTDT, then it'll have flagged up on their supercomputers, buster. One word: Watchlists.
Then maybe you will 'get it'. Only in a way you won't like.
Scotland Yard - and MI6 & GCHQ - share their terrorism intel with Interpol, the FBI, CIA & NSA, you know...!