As John Cole at Balloon Juice writes:

The more this happens, the more news it makes, the more people hear about it, the more pissed off people get, the more people show up, the more the cops over-react, the more news it makes, the more people hear about it… You get the point.

So far, Seattle police have shown considerably more restraint than the NYPD, but let's wait to see how they react when the crowds get a little bigger. Too bad Mayor McGinn didn't choose to keep the police out of this while he had the chance.