Kent notes that WaPo columnist Richard Cohen has discovered the existence of evil. As Kent observes, this is progress.  Three years ago, Mr. Cohen took a more relativist approach.  The subject then was nothing like the grotesque beheading of a hostage (it was, instead, the behavior of the very unfortunately named Congressman Weiner), but relativism quickly balloons once it escapes, so I went after Mr. Cohen with both barrels in my comment to Kent's post.