Whatever Happened to Do No Harm?

The potential US attack on Syria has become a political football. Congressional Repubs like Mitch McConnell oppose a US strike even while they call for a more "muscular" foreign policy. But then the Repub demographic base consists of people who don't get the concept of cognitive dissonance. The Obama administration, however, has the same problem. How would bombing Syria help matters? It would say that "We're angry with you" but bombs and missiles but what would be the actual result? If Assad stays in power it will be a failure for the US. But if he is overthrown Syria could be merely destabilized like Egypt and Libya. The real moral imperative is not to "do something anything" but to not make matters worse.