This is some disgusting, fearmongering, copaganda.
The only actual trend of significance that has meaningful data behind it is an increase in police killings, which is still presented in a mostly useless way (8 over the last 6 months vs 133 from 1961-2009).
Everything else seems to be one-off stats like "a 53-percent spike last week".
Not surprising that this is in the Post, and from what I can see of this author, he's a better dressed version of Rebel Media.