Whenever I read these types of stories I always try to put myself in the shoes of the police officer. Remember these are people that deal with the scum of the earth day in and day out. So of course they are going to be extremely edgy. Especially now society had grown to stop respecting the police. Growing up, I was taught always be on my best behavior with police. "yes sir, no sir", no sudden movements, hands on the steering wheel when pulled over, explaining to the officer my every move, like taking out my registration, even as far as asking for permission, "is it OK to get my registration from the glove compartment?". I'm 34 years old and still behave this way when I get pulled over.
As long as you are polite and cooperative, 99% of the time the whole thing will go smoothly. If you believe you were stopped unfairly, take it up at the court after, not with the cop on the spot.
I'm not saying there aren't any bad racist cops out there... but it's not a blanket statement across all of them. There are some legitimately great police officers out there.
As a society I think we tend to forget that. America needs to be respectful to these officers. Go to a third world country and you can see what true police corruption is like. I've lived it and seen it.