One of the most surprising of President Obama’s legacies may be the eclipse of “Never again” as an aspiration of U.S. foreign policy.I don’t mean that Obama is the first president to stand by as atrocities unfold. He is not. Just as Obama has watched passively as Syria has unraveled, with hundreds of thousands killed and more than 11 million — half the nation — displaced, so President Bill Clinton did nothing to stop genocide in Rwanda, and President George W.