It's gotten to the point where they've brought in the National Guard into Ferguson. That might seem like overkill, but when the local police aren't respected anymore, neutral outsiders might get better treatment.
But Fuentes and Fritz [CNN's house experts cited in the piece] agree on another big reason it might make sense to bring in the National Guard: Residents are fed up with the police.
Marchers have accused police of responding with disproportionate violence against a mostly peaceful crowd. And residents have described protesters helping protect stores from being looted while police did nothing.
I can see where the police might keep back during a looting, for going in with guns blazing would not be cool and using persuasion would not help much with a mob who'll buy tacos if they're asked by the police to buy enchiladas.
"Law and order" buffs wants more robust policing while the folk protesting police oppression want as little policing as possible right now. The Guard might be sent by The Man, but it's a different The Man than the local police serves.
By bringing in National Guard troops, [MO governor] Nixon is moving both Ferguson and St. Louis County police out of the way.
That has a shot of letting cooler heads prevail, but not a great one. Emotions might be burning out, but we could also be revisiting an ongoing unrest like in the mid-late 60s. If it's the latter, the Guard might help tamp down what embers are left, but if it's the former, we'll have a low-grade civil war going and folks with military training might be useful.