It should be quite obvious, but I'll spell it out. These are tests and training for the inevitable and neccessary police/martial law. Much of what is going on is quick preparation and things moving full force. There will be strong force and demonstrations. Not neccessarily because some of the protesters who would be there are dumb enough to do anything with over 5,000 cops, cameras everywhere, etc, but because they are going to make sure even if they have to plant some provocateurs that something happens so they get their real life training from this Billion dollar investment.
When the martial law has to come, it will be both a good and bad thing. Good in the sense that, if all authority no matter how corrupt was done away with, complete anarchy. Everyone scared and hiding in their homes, people killing/raping, it would be a 'Mad Max' scenario. Do you want that, OR do you iron fist rule, every part of your life controlled, and your fear is if your deemed dangerous or instigator of anarchy your 'removed'.
Things do get deeper then that, but that's on the tip of the iceberg for what's coming. To those like, free2beme where anything like this sounds crazy, it's the same denial that keeps many in the WT org. Fear of the truth. To accept and realize a real tough road heading this way, and nothing you can do to stop it, is not easy to accept.
The comfort I've found in the bible in regards to this....is it is God's doing, and that those who are awake and really trying to serve him, will remain calm and be left alone. Since this is foretold in the bible, and that they are 'given' this authority, we will just need to look on the bright side of things. Many he will have killed by the sword in the cities, those who escape that by famine, and those who happen to be hiding and having their own food stash will have deadly plague and disease wipe them out. There is no escape. (If we are at the end of the 1,000 year reign......then shall be in some fashion a clear manner in which a great fire is coming, those of his people will not be allowed to watch the destruction(Neither did Noah or the Israelites when the Angel came to kill the 1st borns)...they will hide on the inner most parts of their homes, and the fire won't harm them, everyone else will be devoured by it. (think Indiana Jones and the Raiders of the Lost Ark)