I agree that the police are doing a difficult job (NOT a particularly dangerous one, however:
http://rapidcityjournal.com/news/data/the-most-dangerous-job...) and they deserve and get my respect when they are doing it properly and let themselves be held accountable.
However, there's a strong movement in the US to undermine accountability. Preventing citizens from recording the police, lying on behalf of colleagues, refusal to hold the police legally accountable in court, and the manufactured outrage whenever somebody says something critical about the police are all part of it.
Ultimately, accountability is what separates the police as citizens in uniform (who deserve and get my respect) from a taxpayer funded gang (who deserve no respect).
And if you think "taxpayer funded gang" is "disgusting" and "hyperbole", read this article and then tell me what's described is NOT gang activity: http://www.baltimoresun.com/news/maryland/crime/bs-md-ci-off...