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Could you explain to me how a person with a gun could ever decrease violence?The way every standing army out there does it by just being there and having guns?
As for the quotes, the biggest issue I see with the police brutality topic is lack of hard numbers. "There have been too many lives lost to police killings" is meaningless in this context. How many? 5 this year? 50? 50 000?
Eyeballing numbers from [0], the US - a 300 million country - has about one million police officers with arrest powers. 5, or even 50 deaths over one million officers is, frankly, an irrelevant statistical blip, not a major and important issue.
Now I'm not saying there is no issue in the US. I haven't seen the numbers, because they tend to not show up in the discussion. It seems to me however, that this is another media-driven issue - i.e. something that does not exist until media start talking about it, and worst case may actually become a self-fulfilling prophecy afterwards.
[0] - https://en.wikipedia.org/wiki/Law_enforcement_in_the_United_...