No, not as the left would have it, that Blackwater still exists. The scandal is that the Justice Department's case against five former security guards for the military contractor unraveled late last week in what appears to be another instance of gross prosecutorial misconduct, as abusive Justice lawyers went after an unsympathetic political target.

The indictments—which were thrown out by D.C. District Judge Ricardo Urbina in a derisive and detailed 90-page opinion—stemmed from a 2007 firefight in Baghdad's Nisour Square that...