Should the United States take action in Syria, why or why not?

I agree with you. Syria is not a threat to the U.S. It's criminal that the dictator has slaughtered so many of the Syrian people, but the U.S. is not the world's policeman, judge, jury, nor executioner.

President Obama would retain much more of his credibility as a leader of the free world by heeding the will of the American people and stay out of Syria's civil war.