Judging by the number of self-proclaimed anarchists, nihilists, and other rioters who have been running around, I'd say it was warranted. The MPL residents are too nice to not have the protection.
The last one is a ubiquitous traffic camera used to catch cars running the red lights at the intersection.
It is a shame the thug protesters have a history and record that requires this kind of policing. How does breaking a window of some mom and pop store help any cause.