I don't think the forces can be completely protected over here from this kind of thing.
This was a very unfortunate incident which sadly cost the life of Lee, how can 'all of them' be protected around the clock even with a for warning on the net?
We are supposed to be a 'free country' to move around as we wish.
The murdering bullies shouldn't be allowed to win by our authorities by containing where and when our forces people can go.
Maybe a tightening up of who come into our country and eradicating others back to where they came from would help.
This may sound odd, but I feel sad for the Muslims living in this country who are decent people and do not agree with this - what shame they must feel about others who are worse than animals and Muslim.