I don't know how much clearer I can make this. I am talking about crowds outside the venue, as you see at every concert and large sporting event. There was security on Monday, this bomb went off in the foyer outside the ticket process.
So I will ask again, you are for some kind of exclusion zone around any event? 1 mile? Where no one is allowed a bag. What about, for example, Oxford Street or Leicester Square on an evening or weekend? No bags there too?
I just don't see how this is possible.