https://en.wikipedia.org/wiki/Sectarian_violence_among_Christians
I think practical solutions would be:
1) More CCTV in all cities and town centres.
2) Check points or barriers protecting areas where there are large numbers of pedestrians.
We are also getting better online surveillance via the UK Investigatory Powers Act (2016).
Seriously? Have you ever lived in London? the place has more CCTV cameras than people,
There are already some temporary checkpoints in the city, around Fenchurch street and a few other areas, plus protective barriers all around HP.
And exactly how are we going to benefit from the "extra security" provided by snoopers charter when;
7/7 bombers - known to MI5 and the police, had previously been investigated, didn't do any good.
Bataclan ringleader and accomplices - already known to the police, didn't do any good
Charlie Hebdo attacks - all attackers known to the police and intelligence services - didn't do any good.
Brussels suicide bombings (airport and underground) - nearly all attackers known to police and intelligence services - didn't do any good
Nice truck attack - main suspect known to the police - didn't do any good
Berlin Christmas market attack - main suspect known to police, and intelligence services - and in the process of being deported, didn't do any good
Westminster attack, - attacker known to the police and MI5 - didn't do any good,
Just because 'the man' knows exactly what pornsite everyone is fapping over each night, doesn't equal more security.