Even aside from the militarization of the police under the banner of the charming agency above, arguing that the US isn't "any kind of police state" is eloquently disproven by the relative treatment of tea party protesters (who were given run of wherever they went with police protection and the usual protest infrastructure such as PA systems, lighting, and sanitation) and OWS (who from day one were harassed by police, prevented from using any bullhorns much less PA systems, and who were eventually put down with brutal force).
Is the US as oppressive as North Korea? Burma? or China? Of course not.
When you get to countries like Russia, you start to get close, and that should trouble everyone.