Hangarshuffle,
I'm curious about your position here. You seem to be very concerned that a UK civilian (who has effectively given up his civilian status by becoming a terrorist operative in a self-declared foreign "state") can be taken out by some spooky drone driver at the will of a politician, yet you are happy to put the Army on the streets of the U.K. to do domestic security instead of properly resourcing the Police.
Can you see any dangers in the Army doing policing? It's certainly not something my Army colleagues think they should be doing.