Onto WWIII - Unless you're a dick you'd want to **** these people over
The issue is what exactly would you do? Because anyone can rant on an Internet forum. So, you are in charge of the country, what would you - really - do, and would it work.
Before you answer, remember the following - there's about 2.8m muslims in the UK. There are (I think, from memory) 3000 of them being actively monitored and about 25k 'of interest' which will contain a big range of people, some not a threat at all some very much a potential threat.