The real purpose of this isn't to be accurate. The reasons are likely to make Londoners accustomed to even more surveillance and/or to give them some "legitimat

The real purpose of this isn't to be accurate. The reasons are likely to make Londoners accustomed to even more surveillance and/or to give them some "legitimate" reason they can appeal to when they want to persecute someone for less glamorous reasons like ethnicity or economic status.