Well, let's see...I'm just gonna take a WILD guess that NONE of you that are attacking the policeman for doing his job are associated in ANY way with law enforcement. Since you were not at the scene when it happened, there is a really good possiblity that you have ZERO information about how this man reacted, what was said or how it was said. ANYBODY can get handcuffed if there is any act of aggression toward a police officer. Here's a guy that probably makes a salary that would make you laugh going to a call that suggests that there is a possible burglary in progress. He's already on alert because he's putting himself in a potentially dangerous situation. When he gets there, he is met with a very uncooperative (documented) person. Automatically, until this person can be more rational and a positive ID can be attained, he's in cuffs. Not to mention that it's safe to say that Gates was resisting arrest. So it's not a judgement call at that point. He's detained...period. The officer doesn't know there's anyone else involved. He's protecting himself at that point.
It makes me laugh to hear you bash a police officer for doing his job. Too many good cops have died for NOT doing their job by giving a "suspect" too much credit for appearing to be harmless.
All Gates had to do was identify himself calmly and cooperatively. Instead his actions made him look guilty and the escalation of the situation got him arrested.
By the way, did anyone EVER hear Obama offer a public apology to our nation's police officers????