forget there was any protest, forget anything about a demonstration. That has nothing to do with it.
The issue, is all of this is 'training', rounding up people, searching, putting them in these temp detention centers, creating a secure perimeter in the middle of large cities, tests on how controlling these large crowds by various means, what works what doesn't work, how will the public respond when certain things are done and with video evidence, can targeted groups be easily framed, etc etc etc
If you think that over a billion to have a 'private' closed to the public meeting of world leaders, in the middle of the largest city of a country, creating a secure barrier in the middle of it, creating detention centers and crowd control, arresting people in crowds, 20,000 guards far outnumbering protestors, if you took offense to being a 'sheeple' as a JW, then believing this is just a meeting and makes perfect sense to do this, when it could be at a government area, whitehouse, UN meeting place, or country area much easier to have security and such.......
Now combine this w/ all the security law changes, the freedoms being removed, etc etc.
If you awake to this, then as events and things come up in the future, you will have a good idea of what's happening, and know what to expect, and make informed decisions.